Try It On

Case Diameter 44mm

Case Diameter 44mm

Try It On

Case Diameter 44mm

Wrist Size (in)

Your Wrist Size Circumference (in)

Band Size

The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.

150 - 205mm (5.9 - 8.1in)

Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".

How to measure your wrist size

The size of a watch depends on the diameter of the dial. Whatever your style is, the choice of a dial is a matter of personal taste.It usually vary between 36 and 42 mm. For a small size, prefer dials smaller than 36 mm. Between 36mm and 42mm, it's a standard size.For larger dial, prefer a size larger than 42 mm.

View The Full Size Guide

Wrist Size (in)

Your Wrist Size Circumference (in)

Band Size

The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.

150 - 205mm (5.9 - 8.1in)

How to measure your wrist size

Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".

How to measure your wrist size

The size of a watch depends on the diameter of the dial. Whatever your style is, the choice of a dial is a matter of personal taste.It usually vary between 36 and 42 mm. For a small size, prefer dials smaller than 36 mm. Between 36mm and 42mm, it's a standard size.For larger dial, prefer a size larger than 42 mm.

View The Full Size Guide

Delivery & Returns

Free shipping on orders over £110, delivery on all other orders is £5. If you are not completely satisfied with your timex.co.uk purchase, you have 30 days from the date of purchase to return the item.
Timex Deepwater Meridian 300 Titanium HEV Automatic dive watch with full-lume dial and black rubber strap suspended in an underwater scene with rising bubbles.
Timex Deepwater Meridian 300 Titanium HEV Automatic dive watch with full-lume dial and black rubber strap suspended in an underwater scene with rising bubbles.
Timex Deepwater Meridian 300 Titanium HEV Automatic dive watch with full-lume dial and black rubber strap suspended in an underwater scene with rising bubbles.

Deepwater Meridian 300 Titanium HEV Automatic

44mm HNBR Synthetic Rubber Strap Watch
Pre-Order
New

  • Mechanical Automatic Movement

  • Grade 5 Titanium Case

  • Sapphire Crystal

£835.00
£835.00 £835.00
Product User ManualPDF
Timex Deepwater Meridian 300 Titanium HEV Automatic with full-lume dial worn on the wrist near open water.
Front view of the Timex Deepwater Meridian 300 Titanium HEV Automatic showcasing its luminous dial, titanium case, and black rubber strap.
  • Timex Deepwater Meridian 300 Titanium HEV Automatic dive watch with full-lume dial and black rubber strap suspended in an underwater scene with rising bubbles.
    Timex Deepwater Meridian 300 Titanium HEV Automatic dive watch with full-lume dial and black rubber strap suspended in an underwater scene with rising bubbles.
  • Timex Deepwater Meridian 300 Titanium HEV Automatic with full-lume dial worn on the wrist near open water.
  • Front view of the Timex Deepwater Meridian 300 Titanium HEV Automatic showcasing its luminous dial, titanium case, and black rubber strap.
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Primary Image
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Primary Wrist Image
    Case Diameter is 44 mm
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Profile Image
    With its high strength-to-weight ratio and enhanced hardness, this premium titanium delivers rugged durability without the added weight.
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Strap Image
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Caseback Image
    Automatic watches have no battery. Instead, these ""self winding"" movements use the natural movement of your wrist as a power source.
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Caseback with Attachment Image
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Campaign Key Silhouettes (Beauty shots) Image
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Collab Additional Image
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Beauty Shot 7
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Lifestyle 2 Image
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 2
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 3
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 4
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 5
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 6
  • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 7
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Primary Image
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Primary Wrist Image
      Case Diameter is 44 mm
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Profile Image
      With its high strength-to-weight ratio and enhanced hardness, this premium titanium delivers rugged durability without the added weight.
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Strap Image
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Caseback Image
      Automatic watches have no battery. Instead, these ""self winding"" movements use the natural movement of your wrist as a power source.
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Caseback with Attachment Image
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Campaign Key Silhouettes (Beauty shots) Image
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Collab Additional Image
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Beauty Shot 7
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Lifestyle 2 Image
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 2
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 3
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 4
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 5
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 6
    • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 7

      Deepwater Meridian 300 Titanium HEV Automatic

      44mm HNBR Synthetic Rubber Strap Watch
      Pre-Order
      New

      • Mechanical Automatic Movement

      • Grade 5 Titanium Case

      • Sapphire Crystal

      £835.00
      £835.00 £835.00
      Product User ManualPDF
      TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Primary Image
      Deepwater Meridian 300 Titanium HEV Automatic
      44mm HNBR Synthetic Rubber Strap Watch
      • Timex Deepwater Meridian 300 Titanium HEV Automatic with full-lume dial worn on the wrist near open water.
      • Front view of the Timex Deepwater Meridian 300 Titanium HEV Automatic showcasing its luminous dial, titanium case, and black rubber strap.
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Primary Image
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Primary Wrist Image
        Case Diameter is 44 mm
        •
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Profile Image
        With its high strength-to-weight ratio and enhanced hardness, this premium titanium delivers rugged durability without the added weight.
        •
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Strap Image
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Caseback Image
        Automatic watches have no battery. Instead, these ""self winding"" movements use the natural movement of your wrist as a power source.
        •
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Caseback with Attachment Image
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Campaign Key Silhouettes (Beauty shots) Image
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Collab Additional Image
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Beauty Shot 7
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Lifestyle 2 Image
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 2
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 3
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 4
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 5
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 6
      • TW2Y48300 Deepwater Meridian 300 Titanium HEV Automatic 44mm HNBR Synthetic Rubber Strap Watch Alt Lifestyle Image 7
      Professional diver wearing the Timex Deepwater Meridian 300 Titanium HEV Automatic while observing the ocean from the water's surface.
      Professional diver wearing the Timex Deepwater Meridian 300 Titanium HEV Automatic while observing the ocean from the water's surface.

      Some Watches Fear the Water. This One Calls It Home.

      The Deepwater Meridian 300 is expertly engineered with 300m of water resistance and a 44mm case rendered in grade 5 titanium. This premium titanium is known for its superior strength-to-weight ratio and increased surface hardness, delivering lightweight durability that won’t slow you down in the water. An automatic helium escape valve, positioned on the case beside 10 o’clock, allows for the release of trapped helium to prevent damage to the crystal during decompression. Ticking inside is a Miyota 8215 21-jewel automatic movement, and we’ve equipped this timepiece with a screw-down crown and screw-on case back, a sapphire crystal with anti-reflective coating, a sturdy crown protector, a unidirectional ratcheting top ring, and Nemoto LumiNova® SG2200 in-fill on the dial, bezel, hands, and hour markers providing the luminosity you rely on as you venture below. Its rugged build is complete with a UV-resistant HNBR synthetic rubber strap, perforated for enhanced breathability and equipped with quick-release spring bars for fast strap changes on deck and beyond.

      Go to top

      Specifications

      Product ID

      TW2Y48300

      Mechanical Automatic Movement

      Automatic watches have no battery. Instead, these ""self winding"" movements use the natural movement of your wrist as a power source.

      Mechanical Automatic

      Powered by You

      A mechanical automatic movement winds itself using the natural motion of your wrist — a rotor inside spins as you move, storing energy in a mainspring. This spring slowly releases power through a precise series of gears and an escapement, driving the hands in a smooth, sweeping motion. It’s a self-sustaining engine, no battery required. When worn daily, it stays powered continuously — keeping perfect time without needing to be reset.

      Grade 5 Titanium Case

      With its high strength-to-weight ratio and enhanced hardness, this premium titanium delivers rugged durability without the added weight.

      • Case Diameter 44 mm
      • Lug-to-Lug Distance 51 mm
      • Case Height 15 mm
      • Case Material Titanium
      • Case Color Titanium
      • Case Finish Beadblasted
      • Dial Color Green
      • Dial Markings Markers (Full)
      • Battery Type Automatic

      Band

      • Band / Lug Width 20 mm
      • Band Material HNBR
      • Band Color Black
      • Band Buckle Buckle

      Sapphire Crystal

      Nearly impossible to scratch, the sapphire crystal lens is as hard and clear as a gemstone. There are only a few materials known to the world that can scratch it.

      Sapphire Crystal

      Scratch-resistant

      Sapphire is the hardest crystal available. Given its hardness it is near impossible to scratch, however, it can be prone to shattering if subjected to a heavy impact. Its scratch resistance is very desirable and as such there is a higher cost to sapphire versus other crystals.

      Acrylic Crystal

      Highly impact-resistant

      Mineral Crystal

      Enhanced durability

      Sapphire Crystal

      Scratch-resistant

      Screw-Down Crown

      The screw-down crown reinforces the case, enhancing water resistance with a secure, durable seal.

      Screw-Down Case Back

      Unlike other case back designs, screw-down case backs are threaded into the watch case, helping to create a secure seal that can offer added resistance to moisture, dust, and pressure.

      Ceramic Bezel Inlay

      Bezel is fitted with a premium ceramic inlay known for its durability and lightness.

      Premium Luminescence

      Powered by a brief exposure to light, the Japanese Nemoto LumiNova® SG2200 in-fill emits a bright glow that's strongest at first and gradually fades over time.

      Unidirectional Turning Top Ring

      Used to track elapsed time, a unidirectional rotating top ring moves in one direction only to prevent accidental adjustment and maintain timing accuracy.

      Helium Escape Valve

      A classic feature of true dive watches, the helium escape valve resembles the watch's crown and functions as a one-way valve, releasing trapped helium gas during decompression. While you likely won't be needing it during your everyday wear, it adds to the bold, diver-inspired aesthetic of this timepiece.

      Features

        Try It On

        Case Diameter 44mm

        Case Diameter 44mm

        Try It On

        Case Diameter 44mm

        Wrist Size (in)

        Your Wrist Size Circumference (in)

        Band Size

        The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.

        150 - 205mm (5.9 - 8.1in)

        Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".

        How to measure your wrist size

        The size of a watch depends on the diameter of the dial. Whatever your style is, the choice of a dial is a matter of personal taste.It usually vary between 36 and 42 mm. For a small size, prefer dials smaller than 36 mm. Between 36mm and 42mm, it's a standard size.For larger dial, prefer a size larger than 42 mm.

        View The Full Size Guide

        Wrist Size (in)

        Your Wrist Size Circumference (in)

        Band Size

        The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.

        150 - 205mm (5.9 - 8.1in)

        How to measure your wrist size

        Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".

        How to measure your wrist size

        The size of a watch depends on the diameter of the dial. Whatever your style is, the choice of a dial is a matter of personal taste.It usually vary between 36 and 42 mm. For a small size, prefer dials smaller than 36 mm. Between 36mm and 42mm, it's a standard size.For larger dial, prefer a size larger than 42 mm.

        View The Full Size Guide

        Engineered for Underwater Exploration

        Merging resilience and elegance with crucial functions for underwater pursuits, our Deepwater Collection is expertly engineered to venture deep at 200m water resistance.
        Explore the collection Shop All

        Tested beyond the edge

        Diver adjusting goggles while wearing the Timex Deepwater Meridian 200 on the wrist above water, wetsuit visible.
        Freediver in a wetsuit illuminated by a beam of light underwater, wearing the Timex Deepwater Meridian 200 dive watch while floating upward in the deep.
        Freediver swimming vertically underwater wearing the Timex Deepwater Meridian 200 dive watch.
        Diver standing underwater in full wetsuit and fins, with the Timex Deepwater Meridian 200 visible on the wrist.
        Side profile of a diver adjusting wetsuit hood under shimmering water light, wearing the Timex Deepwater Meridian 200 on a metal bracelet.
        Freediver in a wetsuit illuminated by a beam of light underwater, wearing the Timex Deepwater Meridian 200 dive watch while floating upward in the deep.

        Our Deepwater collection survived extreme pressure testing, as free diver Francesco Sena descended 42 meters to the limits of Y-40 in Italy, the world’s third deepest pool.

        • Our Promise for the Next 170 Years

          Since 1854, no other watchmaker has ever been able to match our ability to put a well-crafted watch on your wrist, while leaving money in your pocket. Every Timex is a testament to our legendary durability and value, and a reminder to make time yours.

          Read more about us
          Artistic depiction of a hand holding a clock with classical figures and architectural elements on a dark background

        • Crafted to Keep Our Planet Ticking

          We are proud pioneers in making timeless watches that are environmentally-friendly, beautifully crafted and can take a licking and keep on ticking.

          Read more about our goals
          A close-up of a deep green leaf, highlighting its intricate vein structure and surface texture. Water droplets are scattered across the leaf, enhancing the organic detail and creating a fresh, natural ambiance.
        Artistic depiction of a hand holding a clock with classical figures and architectural elements on a dark background
        A close-up of a deep green leaf, highlighting its intricate vein structure and surface texture. Water droplets are scattered across the leaf, enhancing the organic detail and creating a fresh, natural ambiance.