Different case references used for the Omega Seamaster 600
Known case references are:
135.011 (135.0011): 34,5mm width, 18mm between lugs. stainless steel or gold plated, holds a caliber 601.
136.011 (136.0011): 34,5mm width, 18mm between lugs. stainless steel or gold plated, holds a caliber 611 or 613.
135.012 (135.0012): 32,5mm width, 18mm between lugs. stainless steel or gold plated, holds a caliber 601.
136.012 (136.0012): 32,5mm width, 18mm between lugs. stainless steel or gold plated, holds a caliber 611.
