1952 Omega Calatrava 
Reference 2750
Stainless steel  case with around 35mm without counting with the crown, 37.8mm counting with the crown and 43.8mm lug to lug
Calibre 266 in working condition-  with no history of service but keeping time good (photos on the timegrapher available).
Generic bracelet, crown and buckle
I am will gladly deliver the watch on hands in Porto, Portugal or I will send it via registered and insured mail.