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Bremont S500 43mm Stainless Steel
Ref. 02660000121
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Stepping up in Bremont's range
The Supermarine line is Bremont's clearest statement of purpose: dive-rated tool watches built for genuine use rather than the pool edge. The S500 sits at the serious end of that range, rated to a depth that places it alongside professional-grade diving equipment. Its COSC-certified BE-36AE — built on a modified ETA 2836-2 — is enclosed within a soft-iron anti-magnetic cage and an elastomer shock-isolation system, which means the movement is protected from both magnetic fields and impact before the case itself has been asked to do any work. The Trip-Tick construction is the detail that makes sense on the wrist. The lugs are detached from the central barrel — the barrel itself treated with DLC for scratch resistance — and that separation produces a drape and flexibility that a conventionally machined 43mm dive case at 16mm thick simply does not have. The crown sits at two o'clock with a flowing protector, which keeps it clear of the wrist. The unidirectional bezel carries a sapphire crystal cap. The vulcanised rubber strap, textured with vertical striations that pick up the dial's character, adjusts simply and holds securely without ceremony.
- Reference
- 02660000121
- Brand
- Bremont
- Collection
- Supermarine
- Case size
- 43mm
- Case thickness
- 16mm
- Lug width
- 22mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Blue
- Crystal
- Sapphire
- Bezel
- Unidirectional rotating
- Movement
- Automatic
- Calibre
- ETA 2836
- Functions
- Day-date
- Water resistance
- 500m
- Bracelet / strap
- Rubber strap
- Strap colour
- Blue
- Clasp
- Buckle
- Lume
- Luminous
- Condition
- Pre-owned
- Retailer
- Mappin & Webb
Additional specifications
- Lug-to-lug
- 50.5mm
- Power reserve
- 38 hours
Learn more about Bremont
Nick and Giles English founded Bremont in 2002, four years after their father died in a plane crash that Nick survived. All three had restored and flown vintage aircraft together, and the brand that emerged is inseparable from that. The name comes from Antoine Bremont, a French farmer who sheltered the brothers after an emergency landing.
Bremont set out to rebuild British watchmaking, which had effectively ended in the twentieth century. The early watches used Swiss movements in British-designed cases, with the Trip-Tick three-part case construction and a hardened outer barrel treated to over 2000 Vickers.
The military and aviation work is real rather than thematic. Bremont holds contracts with squadrons across the RAF, the US Air Force, and other services, producing issued watches for specific units, and has made watches for Martin-Baker ejection seat survivors — tested to the ejection forces themselves.
The company has also built watches incorporating material from historical objects: oak and copper from HMS Victory, aluminium from the Wright Flyer, and steel from Bletchley Park.
The manufacturing ambition advanced with the opening of a facility in Henley and the release of the ENG300 series in 2021, the first Bremont movement designed and largely made in England. Production is in the low tens of thousands annually.
- 2002
- Nick and Giles English found Bremont.
- 2007
- The first watches ship with the Trip-Tick case.
- 2009
- The Martin-Baker collaboration begins.
- 2021
- The ENG300 becomes the first English-made Bremont calibre.
Also in 7 collections
This watch appears in the Bremont Supermarine range (16), Stainless Steel Watches (3,033), Back in Stock (2,696), Automatic Watches (1,648), Blue Dial Watches (811), Sports Watches (762) and Dive Watches (548).
What the specifications mean
A mechanical watch built to be worn hard and got wet.
Strengths
- 500m water resistance, rated for actual diving
- 50.5mm lug-to-lug keeps the 43mm case wearable
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
- Sits in the lower half of Bremont's range as we list it
Worth knowing
- 43mm sits at the larger end
- 16mm thick, so it will not disappear under a cuff
- 38-hour reserve means winding it after a day off
Bremont S500 alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | 02660000121 | M25600TB-0001 | R32150162 |
|---|---|---|---|
| Price | £3,050 | £3,250 | £3,113 |
| Case size | 43mm | 42mm | 43mm |
| Water resistance | 500m | 500m | 300m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Rubber strap | Titanium bracelet | Ceramic bracelet |
| Power reserve | 38 hours | 70 hours | 80 hours |
| This watch | Closely matched |
|
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 500m it is rated for swimming, snorkelling and recreational diving.
Water resistance explainedWill the glass scratch?
Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.
Sapphire, mineral and acrylic comparedDoes it need a battery?
No. It is automatic — the motion of your wrist winds it, and there is no cell to replace.
Quartz, automatic and solar comparedHow long does it run for when it's not worn?
About 38 hours fully wound — so it will usually stop if you leave it off overnight.
What size strap does it take?
22mm. Any strap of that width will fit, and on most modern watches quick-release bars make the swap a two-minute job with no tools.
Will it fit my wrist?
Lug-to-lug is 50.5mm, which suits wrists from roughly 17.5cm (7 inches) upward.
Lug-to-lug decides fit more than case diameter does.
How to size a watch to your wristIs it a men's or women's watch?
Listed as men's.
Cheapest place to buy
Mappin & Webb is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
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