Sold Price: Wrist watches- 2 (Two): Both Omega, the first a Ref. F6212, 17 jewel cal. 344 bumper automatic movement, Arabic numeral and lozenge marker metal dial, gold filled case, serial #13495338,
1954 Omega Seamaster Calendar bumper automatic - showing the bumper movement - YouTube
What's the Deal With Bumper Movements? | Omega Forums