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HMAF Supermarine 40mm Date — on a clear background
Watches · Bremont

HMAF Supermarine 40mm Date

In the case
The Bremont HMAF Supermarine 40 Date honours Bremont’s enduring partnership with His Majesty’s Armed Forces through a limited edition of 300 pieces inspired by the Royal Navy. Its 40mm 904L steel case features an ultra-matt grey finish, a ceramic bezel insert and a light grey vertical-gradient dial with the official Navy heraldic badge at 6 o’clock. Powered by the BB64 automatic movement with a 56-hour power reserve, it delivers 300m water resistance and combines naval-inspired design with Bremont’s signature tool-watch durability.
Price on requestSpoken for in person
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  • Manufacture CalibreBB64AH
  • DialGradient Grey
  • StrapStrap
Why we carry it

A naval-inspired tool watch built for exploration.

The HMAF Supermarine 40 Date reflects Bremont’s Royal Navy heritage through robust engineering, water resistance and purposeful design.

We carry it for its ultra-matt 904L steel case, ceramic bezel and limited-edition military provenance.

For clients who value performance with a connection to service and adventure, it is Bremont’s modern dive watch with enduring character.

The movement · BB64AH

A robust automatic calibre built for life beneath the surface.

The BB64AH powers the HMAF Supermarine 40 Date with a 56-hour power reserve and a 28,800 vibrations-per-hour frequency. Designed for Bremont’s Supermarine collection, it combines reliable performance with protection against the demands of professional tool-watch use.

Servicing is handled through Bremont’s authorised service network, with specialist care to maintain the calibre’s long-term performance.

Calibre
BB64AH
Type
Automatic
Frequency
28,800bph (4Hz)
Parts & jewels
28 jewels
Power reserve
56 hours
Specifications

The watch, by the number.

The case

Diameter
40 mm
Thickness
12 mm
Lug width
20 mm
Material
Stainless Steel
Finishing
Uni-body Case made from Stainless steel 904L, finshed in ultra matt treatment,
Crystal
Domed anti-reflective sapphire crystal
Case back
Stainless steel screw-in and decorated closed case back finished in ultra matt treatment

The Dial & Functions

Colour
Gradient Grey
Material
Metal dial
Pattern
Grey dial ring with printed minutes track, satin grey ceramic bezel insert with raised polished markers, Royal Navy insignia at 6 o'clock
Finish
Light grey vertical gradient
Indices
Applied indexes infilled with white Super-LumiNova® (Blue emission)
Hands
Polished Rhodium hour, minute and second hands filled with white Super-LumiNova® (Blue emission)
Seconds
Central sweep seconds
Functions
Central Hour/Minute/Seconds Date at 3 O'clock

Bracelet & Water Resistance

Strap
Grey Leather with White Side Stitch
Clasp
Pin buckle
Crown
Screw-down crown with crown guards
Water Resistance
300 metres, 980 feet
In the curation

A closer look at the wall.

See the full curation →
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Begin a viewing

Hold it once. Turn it over.

A watch makes more sense in the hand than on a screen — particularly through the sapphire back. Book a viewing at 900 West Hastings St., Vancouver and we will put a loupe in your hand.

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