Stainless steel OMEGA Seamaster automatic wristwatch. Made 1953

A "bumper" is an early type of automatic movement. Unlike modern automatic movements, where the rotor completes a full 360-degree rotation, the rotor in a bumper moves back and forth in an arc of about 180 degrees, bouncing off springs positioned on opposite sides. Brand: OMEGA Made: 1953 Model: Seamaster Reference: 2577 Calibre: 351 Movement: Automatic Material: Stainless Steel Features/complications: Bumper automatic movement Dial: Black dial featuring an inner minute track with Arabic quarter hour numerals, arrow markers and dauphine hands with center seconds Case dimensions: 34 mm Bracelet/strap: Leather strap Accessories: - SKU: 03472