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Kienzle 57/21
Ligne: 11.5'''
Jewels: 25
Power Reserve: 40 hrs
Frequency: 28800 vph
Type: Automatic
Period used: 1977-
Diameter: 26 mm
Height: 2.95 mm
Hands: 1.60 x 1.20 x 0.25 mm
Base: Longines 990.1
The Kienzle 57/21 watch movement, introduced in 1977, features a micrometer regulator and incorporates two serially coupled barrels. One barrel has a fixed spring, while the other has a slip spring. It is equivalent to the Longines 990 movement. The Kienzle 57/21 movement has several functions, including automatic winding, a sweep second hand, a quickset date feature, and a hack feature. It has been used since 1977.
The Kienzle 57/21 features the following functions:
- Automatic Winding
- Date: quickset
- Hack feature
- Sweep second
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