THORN Titanium Helium Valve NH34 GMT Watch

THORN Titanium GMT Dive Watch – NH34A Automatic, 300m Water Resistance

The THORN Titanium GMT Dive Watch is a professional tool watch designed for travel, diving, and everyday use in demanding environments.

Featuring a full titanium case and bracelet, this watch is powered by the reliable Seiko NH34A automatic GMT movement and offers 300 meters of water resistance with a helium escape valve. It delivers true dual-time functionality combined with lightweight comfort and long-term durability.

Specifications

• Brand: THORN
• Model: SHY037
• Movement: Seiko NH34A Automatic GMT
• Functions: Hours, minutes, seconds, date, GMT (dual time zone)
• Case Material: Titanium
• Case Diameter: 40.5mm
• Lug to Lug: 48mm
• Case Thickness: 14mm
• Case Back: Solid screw-down titanium case back
• Bezel: Unidirectional ceramic bezel with 24-hour GMT scale
• Crystal: Double-domed sapphire crystal with anti-reflective coating
• Water Resistance: 300 meters / 30 ATM
• Helium Escape Valve: Yes
• Dial: High-visibility luminous dial
• Bracelet: Titanium bracelet with quick-release system
• Clasp: Folding clasp with micro-adjustment holes

Movement

This watch is powered by the Seiko NH34A automatic GMT movement, a proven and widely supported caliber known for its reliability and ease of servicing.

The independently adjustable GMT hand allows the wearer to track a second time zone, making the watch especially suitable for travel and international use.

• Automatic and manual winding
• True GMT dual-time functionality
• Stable performance and global serviceability

Water Resistance and Diving Use

With a water resistance rating of 300 meters (30 ATM), this watch is suitable for a wide range of water activities.

• Daily wear
• Swimming
• Snorkeling
• Scuba diving
• Saturation diving environments

The integrated helium escape valve allows internal pressure to safely release during decompression, helping maintain case integrity in high-pressure diving conditions.

Bracelet and Wearing Comfort

The full titanium bracelet offers excellent strength while remaining significantly lighter than stainless steel, reducing wrist fatigue during extended wear.

The bracelet features a quick-release system, allowing strap changes without tools. The folding clasp is equipped with micro-adjustment holes, enabling fine sizing adjustments for improved comfort and fit.

Warranty and After-Sales Service

• Warranty: 2-year international warranty
• After-sales support: Professional customer service and repair support

THORN is committed to building durable, honest tool watches and standing behind every watch we produce.