Omega Seamaster Professional Chronometer 300M - Ref 2455.80.00 – Cal 1120 – 2003 – Full Set

Omega Seamaster Professional Chronometer 300M with reference 2455.80.00 with round blue dial with batons for hours. On the dial at 6 o’clock comes Seamaster Professional Chronometer 300m/1000ft. The window for the date is at 3 o’clock and it is a “Swiss Made” model. The hands are in stainless-steel with “Sword’ style. It is a screwed crown with the Omega logo. It has a unidirectional gold bezel graduated up to 50. At 10 o’clock, comes the crown for the helium. The watch has a stainless-steel back case with engraved outside “Seamaster”. It is an automatic movement with caliber 1120 and 23 jewels. The serial number of the watch is 80 million and date the watch to 2003. The watch comes with a stainless-steel and gold bracelet and double buckle clasp with reference 1503/825. The width between lugs is 20mm. The bracelet fits a 7.50 inches wrist. The watch comes with an Omega box, international warranty and operation instruction booklet.

History

The story of Omega started in 1848 with Louis Brandt when he opened a “Comptoir d’etablissement” a sales office for sub-contracted watch manufacture. In 1880, the brothers Louis Paul and Cesar Brandt set-up a modern watch production unit. In 1889, the company had a production of 100,000 units per year. The name of Omega only appeared in 1903. Omega has developed amazing movements such as the “Labrador” in 1885. In 1917, Omega provided watches to the British army and in 1918 to the American army. In 1957, the speedmaster professional was born and then selected by the NASA in 1965 as the official timekeeper. Today, Omega continues to demonstrate mechanical innovation and remain one of the most prominent brands in the world of watchmakers.

Technical details

Automatic movement with caliber 1120 with 23 jewels, a frequency of 28,800 A/h and 44 hours of power reserve. It is COSC certified. The base caliber is the ETA 2892-A2.

Measurements

Diameter excluding winding crown: 41mm


Length including lugs: 47mm