My grandmother passed away, and the family have been going through the estate. Finding in a small box, was my grandfathers old watch. He was a chef at sea before/under/and after the war, so really a fitting model match. Can't really find an exact year or modelno for this. Tried the omega sites, but I guess the picture isn't there. If anyone have an idea of what it could be, that would be nice to know. Glass has a crack on the left side, but the automatic works.. but my guess it hasn't been in for a service for quite a while. What do I do with this to make it usable again?