Omega® Case Back Gasket ("Sans Fil" polyurethane), inside diameter 19.76 mm, outside diameter 21.00 mm, see all case numbers in description Longines® threaded waterproof crowns Screw Chuck Screwdriver Blades Replaceable

Screw Chuck Screwdriver Blades Replaceable blades held firmly in the handle by means of screw chucks

using a 364 battery with hand dimensions 120/70/20 (hour/minute/sweep second)

This is a 13 1/2 ligne movement with dimensions 30

Diameter of barrel casing 43

Omega® Case Back Gasket ("Sans Fil" polyurethane), inside diameter 19.76 mm, outside diameter 21.00 mm, see all case numbers in description Longines® threaded waterproof crowns Screw Chuck Screwdriver Blades ReplaceableOmega Case Back Gasket ("Sans Fil" polyurethane), inside diameter 19. 76 mm, outside diameter 21. 00 mm, see all case numbers in description Case Back Gasket Round "Sans Fil" polyurethane, inside diameter 19. 76 mm, outside diameter 21. 00 mm, height 0. 80 mm, to fit Omega case numbers: 5950010, 5950023, 5950025, 5960031, 5960038, 5960043, 5960044, 5960049, 5960055, 5960064, 596747, 5961080, 5980005, 5980006, 7950807, 7950814, 7950816, 7960826,