Omega Seamaster Diver 300M Co-Axial 42mm automatic watch, blue dial
O21030422003001
£5,600
Price at Goldsmiths, checked 28 October 2026. Prices can change: Goldsmiths' page has the final word.
This version: 42mm, blue dial, stainless steel case. Goldsmiths has 9 versions of the Seamaster Diver 300M Co-Axial in stock: compare them.
42mmAutomatic300 m water resistantStainless steelMen's
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Specifications
| Brand | Omega |
|---|---|
| Model | Seamaster Diver 300M Co-Axial |
| Reference | O21030422003001 |
| Gender | Men's |
| Style | — |
| Case size | 42mm |
|---|---|
| Lug to lug | 49.9mm |
| Case material | Stainless steel |
| Bezel | Ceramic |
| Dial colour | Blue |
| Strap | Stainless steel |
Will 42mm suit your wrist? Check your size
| Movement | Automatic |
|---|---|
| Calibre | Omega 8800 |
| Power reserve | 55 hours |
| Water resistance | 300 m |
| Crystal | Sapphire |
| Thickness | 13.56mm |
| Date | — |
| Guarantee | Omega 5 Year Guarantee |
A dash means neither Goldsmiths nor Omega states it on the pages we read, so it's left blank rather than guessed.
Description
Delivery & returns
Other versions of the Omega Seamaster Diver 300M Co-Axial
The same watch in 9 versions at Goldsmiths: here's what changes. Prices are Goldsmiths' own, checked daily.
| Reference | Size | Dial | Case | Strap or bracelet | Price |
|---|---|---|---|---|---|
| O21030422003001 This one | 42mm | Blue | Stainless steel | Stainless steel | £5,600 |
| O21032422003001 | 42mm | Blue | Stainless steel | Rubber | £5,300 |
| O21030422006001 | 42mm | Grey | Stainless steel | Stainless steel | £5,600 |
| O21022422001001 | 42mm | Black | Stainless steel | Rubber | £8,100 |
| O21022422003002 | 42mm | Blue | Stainless steel | Rubber | £8,100 |
| O21030445106001 | 44mm | Grey | Stainless steel | Stainless steel | £8,100 |
| O21092442001002 | 43.5mm | Black | Ceramic | Fabric | £8,400 |
| O21020422001001 | 42mm | Black | Stainless steel | Stainless steel | £12,300 |
| O21062445101001 | 44mm | Black | 18ct rose gold | Rubber | £34,200 |