Bremont Supermarine 300M Date 40mm 18ct Rose Gold Automatic Watch
How might this watch look on my wrist? A 3D representation of Bremont Supermarine 300M Date 40mm 18ct Rose Gold Automatic Watch. Check retailer page for actual dimensions and specifications.
Scroll or drag to turn the wrist. Shown to scale on a typical men’s wrist (17.5 cm), lug to lug 46.7 mm (measured from the photo).
This 40mm sports watch combines 18ct rose gold with 904L stainless steel in a mixed metal case offering 300 metres of water resistance. The brown gradient dial features rose gold hands and applied indices filled with Super-Lumi Nova for low light visibility. A domed sapphire crystal with anti-reflective coating protects the dial, whilst a screw-in case back provides additional water resistance integrity.
The watch is powered by Bremont's modified calibre 11.5-ligne BE-92AV automatic movement, delivering a 50-hour power reserve. A quick-release stainless steel bracelet with micro-adjustment and foldover clasp secures the watch to the wrist. The date window is integrated into the dial layout, completing the functional specification of this professional-grade diving watch.
The Bremont Supermarine 300M Date 40mm 18ct Rose Gold Automatic Watch is listed on WatchShopper as a 40 mm 904L stainless steel and 18ct rose gold automatic watch with a brown gradient dial, a date display, sapphire crystal, and 300 m water resistance. It runs on the BE-92AV calibre with a 50-hour power reserve and comes on a stainless steel bracelet. On 21 October 2026 the lowest UK price was £4,700.00 at Beaverbrooks, in stock, with free delivery and 30-day returns. With the voucher code GET50, Beaverbrooks brings it to £4,650.00.
At £4,700 this watch is on the dearer side for an automatic watch with a 38–42 mm case: 76% of the 1,508 we track from every brand cost less. 62% of the 24 Bremont watches we track cost less than this one. This is the 6th cheapest of the 8 versions of the Supermarine we list.
