Omega Vault › All references › Seamaster 300M
Seamaster 300M · 2018 to present
Rank #16 of 32 in the Omega Vault
Average market price for an example in excellent condition. Dashed line marks the 2026 retail price.
The fourth-generation Diver 300M arrived in 2018 for the model's 25th anniversary, bringing a ceramic dial and bezel and the anti-magnetic calibre 8800.
The line traces back to the 1993 Seamaster Professional that Pierce Brosnan wore as James Bond from 1995.
It keeps the signature helium escape valve, scalloped bezel and skeleton sword hands.
It is the default Omega dive watch and one of the most traded Omega references..
Our verdict: Omega's best-selling diver, easy to buy and easy to sell, but at about two thirds of retail once worn. A great watch to own, a poor one to flip.
| Sizes | 42mm |
|---|---|
| Case & bracelet | Stainless steel |
| Factory bracelet | Stainless steel bracelet |
| Factory bezels | Unidirectional black ceramic bezel with white enamel diving scale |
| Notable dials | Black polished ceramic with laser-engraved wave pattern |
| Caliber | 8800 Co-Axial Master Chronometer |
| Production | 2018 to present |
| Sold | Example | Price |
|---|---|---|
| Oct 5, 2026 | New/unworn · eBay sale | $5,412 |
| Sep 27, 2026 | Pre-owned · eBay sale | $4,101 |
| Sep 22, 2026 | Pre-owned · eBay sale | $4,450 |
| Sep 17, 2026 | Pre-owned · eBay sale | $4,300 |
Recorded eBay completed sales, logged at our last data refresh.