Certina 13-20-724, Balance, complete
Tax included.
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CERTINA original balance in very good used condition.
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Fits cal: 13-20, 13-21 (19.800 A/h)
Data:
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17 jewels, manual wind. -
Size: 5,75 x 6,75´´ 13 x 15,25 mm. -
H: = 3,55 mm. -
N: = 19.800 A/h. -
Power reserve: 43 h. -
Mainspring: 1.35 x 5.5 - 0.065 - 210
Versions:
- 13-20: N: = 19.800, no mountings.
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13-21: N: = 19.800, mounting threads. -
13-22: N: = 21.600, mounting threads.