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

Burlington Arcade · Mayfair, London