Omega Seamaster Planet Ocean 600 M Co-Axial Master Chronometer Chronograph with reference 220.127.116.11.03.001 in Steel.
The diameter is 45,50mm. Inside the watch is a caliber 9900, waterproof up to 600m. The watch has a power reserve of 60h.
This watch will be delivered new with box, papers and stickers and has full international warranty.