These are very uncommmon 36mm. Omega Seamaster watches having VERY thick and chunky lugs measuring 35.5mm across and 44mm. lug-to-lug, 12mm. thick. This Omega Seamaster dates to 1970. The embossed Seamonster logo is present on the case back. This Omega dates to 1970 and really looks excellent overall. The original dial displays very fine condition with only ageing on the extreme outer edges. Notice the baton markers and hands with black inset. The correct Omega winding crown is installed. This watch was just fully serviced; with the caliber 565 automatic winding movement accurate. This movement offers a quick-set feature when you pull out the winding crown. This model is hard to find.