MWC 24 Jewel 300m Automatic Military Divers Watch with Tritium GTLS - Very Minor Issues Relating to 1 GTLS Tube

FACTORY DESCRIPTION

SKU Code: SUB/SS/24TA

This recently upgraded military divers watch is one of MWC’s latest high-specification automatic mechanical models, featuring self-powered GTLS tritium illumination, a scratch- and impact-resistant sapphire crystal, and a durable ceramic bezel. Powered by the highly regarded Seiko NH35A 24-jewel automatic movement, this model offers exceptional reliability together with outstanding nighttime visibility and robust professional-grade construction.

Representing excellent value for a fully self-luminous automatic divers watch of this specification, the SUB/SS/24TA has been designed for military personnel, security professionals, divers, and anyone requiring a dependable tool watch capable of performing under demanding conditions.

The watch utilises GTLS (Gaseous Tritium Light Source) tubes, making it one of the easiest watches in the world to read in darkness or extremely low-light environments. Unlike conventional luminous paint, tritium tubes provide constant illumination without requiring exposure to light beforehand. The H3 tritium dial remains continuously visible day and night and can appear up to 100 times brighter in darkness than standard luminous watch dials.

To compare Tritium GTLS tubes with Super-LumiNova, please visit:
https://www.mwcwatches.com/pages/tritium-gas-tubes-v-super-luminova

The watch measures 40mm excluding the crown and 45mm including the crown, offering substantial wrist presence while remaining highly wearable. It uses a standard 20mm military webbing strap format, compatible with a vast range of US-pattern nylon straps and European NATO straps.

Dimensions & Specification

• Water Resistance: 300m / 1000ft
• Movement: Seiko NH35A Automatic Movement
• Jewels: 24 Jewels
• Illumination: GTLS Tritium Light Sources
• Bezel: Ceramic Unidirectional Bezel
• Crown: Screw-Down Locking Crown
• Case Diameter: 40mm excluding crown / 45mm including crown
• Lug to Lug: 49mm
• Thickness: 15mm
• Crystal Diameter: 31mm
• Crystal Type: Non-Reflective Impact-Resistant Sapphire Crystal
• Weight: 89.5g
• Strap: 20mm Military Nylon Webbing Strap

Why Sapphire Crystal?

Customers frequently ask about the advantages of sapphire crystal compared to standard mineral glass. Synthetic sapphire is widely regarded as the premium material for watch crystals because of its exceptional hardness, scratch resistance, and impact durability.

These characteristics make sapphire crystal especially popular with military personnel, police officers, security contractors, divers, and people with active outdoor lifestyles — groups which account for a substantial proportion of our customer base.

In practical terms, the difference is considerable. In our experience, the overwhelming majority of cracked watch crystals we encounter are mineral glass rather than sapphire. Even hardened mineral glass cannot match sapphire for durability under adverse conditions.

The manufacturing process also contributes significantly to sapphire’s strength. After production, the sapphire is heat-treated to remove internal stresses that could otherwise create weak points. Anti-reflective coatings are then applied to improve clarity and reduce glare.

Due to the additional manufacturing complexity and cost involved, sapphire crystal is generally reserved for higher-end and professional-grade watches.

Delivery Charges – Worldwide

Europe

• Tracked Mail: €14.95 / £12.50 / US$16.95
• Express Courier (UPS/FedEx): €28.00 / £23.50 / US$31.75

United Kingdom

• Tracked Mail: £9.95
• Small Items (e.g., 1–2 straps): £5.95
• Express Courier (UPS/DPD): £12.50

Rest of the World

• Tracked Mail: US$23.75 / €20.95 / £17.50
• Express Courier (UPS/FedEx): US$39.25 / €34.50 / £29.00

More information on shipping can be found here.