Omega Seamaster Diver 300M Co-Axial Master 44mm automatic watch, blue dial
O21030445103001
£8,100
Price at Goldsmiths, checked 28 October 2026. Prices can change: Goldsmiths' page has the final word.
44mmAutomatic300 m water resistantStainless steelMen's
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Specifications
| Brand | Omega |
|---|---|
| Model | Seamaster Diver 300M Co-Axial Master |
| Reference | O21030445103001 |
| Gender | Men's |
| Style | — |
| Case size | 44mm |
|---|---|
| Lug to lug | 52.8mm |
| Case material | Stainless steel |
| Bezel | Ceramic |
| Dial colour | Blue |
| Strap | Stainless steel |
Will 44mm suit your wrist? Check your size
| Movement | Automatic |
|---|---|
| Calibre | Omega 9900 chronograph |
| Power reserve | 60 hours |
| Water resistance | 300 m |
| Crystal | — |
| Thickness | 17.2mm |
| 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.