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Cooper Watches COOPER SUBMASTER STEEL FINISH ROYAL NAVY MILITARY DIVERS WATCH SM2021ST, photo 1 of 8
Images © Cooper Watches, from cooperwatches.co.uk

Cooper Watches

COOPER SUBMASTER STEEL FINISH ROYAL NAVY MILITARY DIVERS WATCH SM2021ST

Diver

≈ $126Sold out

Approximate. Charged in GBP (£94.99).

Last checked Oct 28, 2026

View on Cooper Watches’s site ↗

From Cooper Watches

"Just to say how impressed I am with this watch. It exceeds all my expectations. It is definitely no Eaglemoss ! That must be a swear word to you...massively impressed with the watch ! Kindest regards John" The Submaster Returns... A new upgraded model. -German built cases for reliable water resistance. -Non reflective sandblasted finish -Assembled in Switzerland -New Midnight Navy Dial and Bezel option -Individually serial numbered The kind of watch worn by hairy chested Secret Agents, former SBS types with easy smiles and big....well, we won't go any further. Needless to say the Cooper Submaster exudes the style of the indestructible divers watches worn by the British special forces in the 1970s and 80s. A functional form that doesn't date, and always has a classic style for divers watch aficionados. The Submaster is a British designed quartz date military divers watch. Traditional stainless steel finish complete with high quality 20mm NATO strap. The matt black or midnight navy dial is enhanced with Submaster in ironman red or white and retro military Gladiator Hands. Fully waterproof to 300m/ 1000ft pressure tested. The cases of these watches are made in Germany for reliable water resistance, and the watch is assembled in Switzerland. The matte finish on the case gives the watch anti-reflective qualities when on daylight missions.The special Gladiator Hands are designed for much better visibility under low light conditions, either underwater or on night operations- Luminova is applied for strong illumination in the dark.The aluminium bezel insert is equipped with full 60 individual minute markers, this was originally designed so that military frogmen would be able to synchronize perfectly on dangerous covert missions. Case: 42 exc crown and 45mm inc crown Crystal diameter: 30 mm Lug to lug is 47 mm Case Thickness: 12mm Dial with Luminova applied Colour: Black or Midnight Navy Case Material: 316L Stainless Steel Caseback: 316L Stainless Steel Crown: 316L Stainless Steel Water Resistance: 30 atm (300m) Glass: Hardened Mineral Crystal Precision Miyota 2115 Quartz movement. The watch is shipped in a tin. Assorted feedback "Really liking this watch...it's just what I have been looking for" "This watch is sharp as a tack!" "The midnight navy colour is oozing with class" "That is really super. How'd a nitwit like you get so tasteful?" "It is a very good watch and I will buy other models in the future." - Buyer, Italy

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
30 mm
Lug-to-lug
Not listed
Thickness
12 mm
Thickness incl. crystal
Not listed
Lug width
30 mm
Material
Not listed

Movement

Type
Quartz
Caliber
Miyota 2115
Power reserve
Not listed
Functions
Not listed

Crystal and bezel

Crystal
Mineral
Bezel
Not listed

Water resistance

Rated to
300 m

Dial and lume

Dial
Not listed
Lume
Not listed

Strap

Strap
Not listed
Every spec Cooper Watches lists
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