Reference 136.011 from 1960s Calibre 611 Guaranteed Original Omega Seamaster Watch All Stainless Steel any imperfections or dark shadows are reflections from my camera lens this watch is beautiful Size 34mm excluding crown x 40mm lug to lug (top to bottom) Thickness: 10mm Beautiful Restored Black Omega Seamaster 600 Dial new Leather Band with Stainless Steel Omega Buckle Acrylic crystal Manual movement This watch is in excellent condition without any damage It is original and will become a perfect vintage collectible treasure