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Cooper Watches MWC 24 Jewel 300m Automatic Military Divers Watch with Tritium GTLS Illumination, photo 1 of 1
Images © Cooper Watches, from cooperwatches.co.uk

Cooper Watches

MWC 24 Jewel 300m Automatic Military Divers Watch with Tritium GTLS Illumination

Diver

Lugs stay on wrists from about 6.5 in (lug-to-lug rule of thumb)

≈ $485In stock

Approximate. Charged in GBP (£365).

Last checked Oct 28, 2026

View on Cooper Watches’s site ↗

From Cooper Watches

Product Details SKU Code: SUB/SS/24TA This brand new recently uprated military divers watch with Tritium GTLS tubes, scratch and impact resistant sapphire crystal and ceramic bezel is one of our latest automatic 24 jewel mechanical military divers watches. This model represents excellent value for an automatic self luminous divers watch with such a high specification. The Gaseous Tritium Light Sources (GTLS) on these watches make them the easiest watches in the world to see in low light or night conditions. The Tritium vials on the H3 dial illuminate up to 100 times brighter than any other watch dial, so you can easily identify the time at a second's glance. To compare Tritium GTLS tubes and Super-LumiNova click here The watch measures 45mm including the crown and 40mm excluding the crown although it uses the the same 20mm webbing straps as other MWC military divers watches and many other leading brands giving a vast range of US pattern nylon webbing straps as well as European NATO straps. Dimensions and Specification: • 300m / 1000ft Water Resistant • Movement: NH35A • GTLS Tritium Light Sources • Ceramic Bezel • Screwdown crown • Width Inc Crown 45mm (Exc Crown 40mm) • Thickness 15mm • Crystal Diameter 31mm • Crystal Type: Non Reflective and Impact Resistant Sapphire* • Lug to Lug 49mm • Weight 89.5g • 20mm Nylon Webbing Strap * A lot of people ask us what are the benefits of sapphire crystal over a standard mineral crystal? The answer is that synthetic sapphire is by far the best material for watch crystals because it is very strong and also shatter and scratch resistant, these characteristics make it very appealing to military and security personnel, police officers and people who lead active outdoor lifestyles, these groups account for over 70% of our customers. To get things into perspective we find that when clients have accidents with watches resulting in a cracked crystal over 90% are usually watches with mineral glass crystals, even factoring in that we use hardened mineral crystals they still do not come close to sapphire for durability under adverse conditions. The reason that sapphire crystals are so strong is that after the sapphire glass is manufactured it is also heat-treated to remove its internal stresses—which can cause weakness—it is then made into the watch crystals and two layers of anti-reflective coating are applied, interestingly sapphire crystal is now used on the latest iPhone. Of course sapphire crystal comes at a price hence you find that it's normally only fitted to higher end watches.

Specifications

Details and photos come from Cooper Watches’s website, last checked Oct 28, 2026. Specs were read automatically and may contain mistakes.

Case

Diameter
31 mm
Lug-to-lug
49 mm
Thickness
15 mm
Thickness incl. crystal
Not listed
Lug width
Not listed
Material
Not listed

Movement

Type
Automatic
Caliber
Seiko NH35
Power reserve
Not listed
Functions
Not listed

Crystal and bezel

Crystal
Sapphire
Bezel
Not listed

Water resistance

Rated to
Not listed

Dial and lume

Dial
Not listed
Lume
Not listed

Strap

Strap
Not listed
Every spec Cooper Watches lists
Movement
NH35A
SKU Code
SUB/SS/24TA
Crystal Type
Non Reflective and Impact Resistant Sapphire*
Product Page
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