Precious Timecare - The Omega Seamaster 300M is an automatic watch that uses their in-house calibre 2500 with co-axial escapement. Case size is measured in 41mm which is perfectly ideal for all
![Watchmaker Compares Omega Seamaster Timepieces With Caliber 1120, 2500, & 8500 Movements | aBlogtoWatch Watchmaker Compares Omega Seamaster Timepieces With Caliber 1120, 2500, & 8500 Movements | aBlogtoWatch](https://www.ablogtowatch.com/wp-content/uploads/2015/06/Omega-Seamaster-Watch-Movements-compared-18.jpg)
Watchmaker Compares Omega Seamaster Timepieces With Caliber 1120, 2500, & 8500 Movements | aBlogtoWatch
Swiss Watch Trader - This stunning Omega Seamaster Diver 300, ref 21230412001003, features the classic black dial and black ceramic bezel. The Seamaster Diver 300 is powered by the Omega calibre 2500
![Omega Seamaster Chronometer Aqua Terra Co-Axial Watch 150M Ref. 2503.33 Calibre 2500 *** SPECTACULAR *** Omega Vintage watches - Watches83 Omega Seamaster Chronometer Aqua Terra Co-Axial Watch 150M Ref. 2503.33 Calibre 2500 *** SPECTACULAR *** Omega Vintage watches - Watches83](https://watches83.com/17407-large_default/omega-seamaster-chronometer-aqua-terra-watch-150m-ref-250333-cal-omega-2500-spectacular-.jpg)
Omega Seamaster Chronometer Aqua Terra Co-Axial Watch 150M Ref. 2503.33 Calibre 2500 *** SPECTACULAR *** Omega Vintage watches - Watches83
![Omega - Seamaster Diver 300M Chronometer James Bond, ref.2220.80.00 - Self-winding, cal.Omega 2500, 3.5Hz, 48hr p.r., date - 41mm, steel case, blue… | Klok, Watches Omega - Seamaster Diver 300M Chronometer James Bond, ref.2220.80.00 - Self-winding, cal.Omega 2500, 3.5Hz, 48hr p.r., date - 41mm, steel case, blue… | Klok, Watches](https://i.pinimg.com/736x/2c/d8/46/2cd846245ae5a6663c6123d88730d889.jpg)