Silver dial silver indices with tritium lume plots
Mvmnt. cal 611 hand winding center second and calendar (date) display which is in the 21 million serial number range
Case ref.# 138.011 in stainless Steel
Lug width: 18MM
Circa: 1964
misc:
OMEGA Crystal part # - PZ5007L (date magnifier) @ 31.6 mm diameter, acrylic with metal tension ring.
Omega Rubber GASKET (case back) Ref.# 088.0010, Overall diameter Ø31.10mm, Thickness 0.60mm