OM7 Omega Seamaster Aqua Terra Master Co-Axial. Reference: 231.10.39.21.03.002. Watch case measures 39mm. This version is with the blue dial and the steel bracelet. This watch is new although I had it completely serviced due to a difficult operating crown. The warranty card is undated but due to the service this watch is under Omega warranty for the next 2 years. Naturally it also comes with the original box and papers. A super watch! SOLD