Timex Deepwater 300 with Titanium Case and Helium Valve

July 24, 2026
4 minutes read

Timex elevates its professional dive watch lineup with the Deepwater Meridian 300 Titanium HEV Automatic series, reference TW2W82100 and TW2Y48300.

This timepiece line merges rugged vintage inspiration with modern professional dive capabilities. 

The overall concept focuses on high-performance utility, extreme pressure resistance, and everyday wearability

These watches represent an impressive mechanical upgrade within the popular Deepwater family.

Specification

Grade 5 titanium forms the robust case construction for both models. Aerospace-grade titanium provides a superior strength-to-weight ratio compared to traditional stainless steel. 

The case features a commanding diameter of 44mm, a total thickness of 15mm, and lug-to-lug distance measures 51mm. 

Titanium offers hypoallergenic properties and outstanding corrosion defense against harsh saltwater exposure. 

The heavy-duty case construction provides professional water resistance rated to 300 meters depth. This depth rating equals 30 ATM of pressure in deep underwater conditions.

An automatic helium escape valve sits on the case exterior at 10 o’clock. Trapped helium gas vents automatically during saturation decompression to prevent crystal damage. 

Professional saturation divers rely on helium escape valves during deep marine missions. 

A unidirectional ratcheting dive bezel allows accurate elapsed time tracking underwater during descents. 

A tough black ceramic bezel insert enhances scratch resistance and longevity significantly. Scratch-resistant sapphire crystal with anti-reflective coating protects the dial view in bright light.

A secure screw-down crown and crown protector guard the internal watch components. A solid titanium screw-on case back completely seals the internal movement chamber.

 

Timex equips both references with a high-performance black HNBR synthetic rubber strap.

The HNBR  or Hydrogenated Nitrile Butadiene Rubber resists extreme heat, chemical wear, and solar UV radiation.

Integrated strap perforations channel excess water away quickly while enhancing skin breathability. 

Quick-release spring bars enable effortless strap changes without requiring specialized watch tools. 

A sturdy titanium pin buckle fastens the strap securely during active water sports. The soft synthetic rubber material ensures comfortable all-day wear on land or underwater. 

Movement

This collection is powered by reliable Japanese automatic mechanical movement Miyota caliber 8215.

This mechanical movement contains 21 jewels to reduce internal friction during operation. The self-winding mechanism operates at a steady frequency of 21,600 vph

You can enjoy a dependable power reserve lasting approximately 42 hours of continuous runtime. 

Timex Deepwater Meridian 300 Titanium HEV Automatic TW2W82100 

Timex Deepwater Meridian 300 Titanium HEV Automatic TW2W82100 
Timex Deepwater Meridian 300 Titanium HEV Automatic TW2W82100 

The Timex TW2W82100 delivers a classic, high-contrast tactical dive watch aesthetic, and it showcases a deep black dial.

Large applied hour markers contrast vividly against the dark dial background for fast legibility.

Oversized hands feature high-grade Japanese Nemoto LumiNova® SG2200 luminous material for low-light legibility. 

Timex Deepwater Meridian 300 Titanium HEV Automatic TW2W82100 
Timex Deepwater Meridian 300 Titanium HEV Automatic TW2W82100 on wrist

A bright orange arrow seconds hand adds an energetic pop of color underwater. The matching black ceramic bezel insert creates a unified, professional tool watch appearance. 

Watch collectors appreciate this reference for its traditional, timeless maritime design language. The dark palette provides a clean, understated look suitable for daily casual wear. 

Timex Deepwater Meridian 300 Titanium HEV Automatic TW2Y48300 

Timex Deepwater Meridian 300 Titanium HEV Automatic TW2Y48300 
Timex Deepwater Meridian 300 Titanium HEV Automatic TW2Y48300 

The reference TW2Y48300 offers a distinctive, adventurous visual character for modern watch enthusiasts. 

It features a striking pale green dial color display. The dial surface integrates a subtle fine texture with an impressive full-lume surface coating. 

The entire green dial surface glows brightly under dark underwater ambient conditions. Dark outlined hour markers and bold hands stand out sharply against the luminous background. 

The signature orange arrow seconds hand provides precise tracking of passing operational seconds. 

Timex Deepwater Meridian 300 Titanium HEV Automatic TW2Y48300 
Timex Deepwater Meridian 300 Titanium HEV Automatic TW2Y48300 on wrist

This model combines vibrant contemporary style with extreme low-light visibility and functionality. The green aesthetic introduces a fresh, modern aesthetic to the Deepwater collection.

Timex successfully combines Grade 5 titanium construction with professional mechanical diving capability. Both models of Timex Deepwater Meridian 300 Titanium HEV Automatic are priced at $999.

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