Crown, Omega Ranchero / Seamaster 30, steel, D=5.5, No: 4503
- NOS OMEGA Ranchero / Seamaster 30 in stainless steel. Manufactured in the 60 -70's with the newer logotype. Last picture shows the differences in logotypes over the years.
- Fits also other manual wind 30 mm's Omega with 120 stem and 2.5 case tube.
- Diameter: 5.50 mm.
- Height: 2.50 mm.
- Tube: 2.50 mm.
- Thread: 1.20 mm.