Bremont Supermarine 300M Date 40mm automatic watch, brown dial
SM40-DT-BI-BR-B
£4,700
Price at Goldsmiths, checked 28 October 2026. Prices can change: Goldsmiths' page has the final word.
This version: brown dial, stainless steel & rose gold case. Goldsmiths has 2 versions of the Supermarine 300M Date in stock: compare them.
40mmAutomatic300 m water resistantStainless steel & rose goldMen's
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Specifications
| Brand | Bremont |
|---|---|
| Model | Supermarine 300M Date |
| Reference | SM40-DT-BI-BR-B |
| Gender | Men's |
| Style | — |
| Case size | 40mm |
|---|---|
| Lug to lug | — |
| Case material | Stainless steel & rose gold |
| Bezel | — |
| Dial colour | Brown |
| Strap | Stainless steel |
Will 40mm suit your wrist? Check your size
| Movement | Automatic |
|---|---|
| Calibre | — |
| Power reserve | — |
| Water resistance | 300 m |
| Crystal | — |
| Thickness | — |
| Date | — |
| Guarantee | Bremont 3 Year Guarantee |
A dash means neither Goldsmiths nor Bremont states it on the pages we read, so it's left blank rather than guessed.
Description
Delivery & returns
Other versions of the Bremont Supermarine 300M Date
The same watch in 2 versions at Goldsmiths: here's what changes. Prices are Goldsmiths' own, checked daily.
| Reference | Dial | Case | Price |
|---|---|---|---|
| SM40-DT-BI-BR-B This one | Brown | Stainless steel & rose gold | £4,700 |
| SM40-DT-SS-BK-B | Black | Stainless steel | £3,600 |