1055b
Automatic
The second iteration of the Rolex Day-Date movement, which modified the 1055; it measures 7.1mm in height rather than 7mm. Debuted circa 1957 and features chronometer certification.
Caliber Details
- Manufacturer
- Rolex
- Base Movement
- Rolex 1055
- Type
- Automatic
- Frequency
- 18000 vph
- Jewels
- 25
- Diameter
- 28.50 mm
- Display
- Analog
- Hands
- Hours, Minutes, Seconds
