Omega Seamaster 30 125.007-63 manual wind watch

A very rare Omega manual wind watch with a grey linen dial. Linen dials often show a lot of wear, especially around the edges, but in this case the dial is in very good condition for its age. The case has signs of age and use and the crown is original. Leather strap has been used. No service history is known, but the watch works well and it is running approximately +- 10 seconds per day.