OMEGA, Seamaster Calendar

Case size: 34,5 mm
Material: 18K gold
Movement: automatic, caliber 503
Year: circa 1958
Crystal: plastic crystal
Bracelet: original bracelet in 18K gold
Reference number: OT 2849
Serial number: 16.212.436
Case number: 144216 / 2849 S.C
Total weight: circa 121 gram

Please keep in mind that an overhaul might be needed, since no service history is available.