Selling my 1952 Omega bumper automatic watch to help fund another watch purchase. Serial # dates to 1952, case is marked 14k gold filled, 342 caliber automatic movement is marked 17 jewels. Bumper movement works fine, and if you've never used one is sort of fun as you can sometimes feel the clunk as it reaches its endpoint. (It doesn't spin 360 degrees.) It comes with a relatively new Hirsch lizard strap. Case measures approx. 33mm.