Stainless steel OMEGA 'bumper' automatic wristwatch. Made 1948

Stainless steel OMEGA 'bumper' automatic wristwatch. Made 1948A "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: 1948 Model: Seamaster Reference: 2374 5 Calibre: 30. 10. RA. PC Movement: Automatic Material: Stainless Steel Features complications: Bumper automatic movement Dial: Off

Case Dimensions: 45mm

and a date display

This Seamaster chronograph perfectly represents the more vintage chronograph that can be worn under any occasion

while the unidirectional bezel minimized diving errors

a 12-hours sub dial at 6 o’ clock

the Chronostop was a premium model

Case dimensions: 55mm

a perpetual calendar with a moonphase

Jaeger-LeCoultre’s Triple Calendar is a distinguished watchmaking complication

the 12-600AT

Movement:  Manual

consisting of only 999 timepieces