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Return To ShopThe Bulova 12OUCD is a mechanical watch movement that was in production from 1972 to 1974. It features a Triovis micrometer regulator for precise timekeeping adjustment. The stem can be released using a slide mechanism. Notably, the watch is not self-starting, but it incorporates a hack mechanism that stops the balance in a position to ensure reliable starting when the crown is pushed in. In terms of functions, the Bulova 12OUCD includes an electronically controlled balance motor, sweep second hand, day indicator, quickset date function, hack feature, adjustable stud holder, electronic component for increased accuracy, shock protection, and a calendar.
The Bulova 12OUCD features the following functions:
Ronda Reference # | Shock System | Buy |
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Dimensions | GR Reference # | End Type | Buy |
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Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
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Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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Part Description | Reference # | Alternate | Buy |
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BALANCE COMPLETE | 721/2157 | 4721/PUW 2501 | Buy part |
CENTER PIPE | M/2249 | 161/PUW 1000 | Buy part |
CENTER WHEEL, OFFSET | 203/117 | *200/1/PUW 1000 | Buy part |
CLUTCH LEVER | 435/887 | /PUW 2501 | Buy part |
ESCAPE WHEEL, S/S | 705/1221 | 4360/PUW 1000 | Buy part |
FOURTH WHEEL, REGULAR | 220/747 | 203/PUW 1000 | Buy part |
MINUTE COCK | 462/157 | Buy part | |
MINUTE WHEEL | 260/1025 | /PUW 1002 | Buy part |
MINUTE WHEEL SPRING | M/2250 | 476/PUW 1000 | Buy part |
REGULATOR, FLAT | 301/1261 | 309/PUW 1000 | Buy part |
SCREW, BALANCE BRIDGE | 5121/102 | 5121/4/PUW 1000 | Buy part |
SCREW, BATT HOLD SPRING SHORT | 5110/749 | 54400/PUW 1000 | Buy part |
SCREW, DIAL SIDE | 5750/613 | Buy part | |
SCREW, MINUTE COCK | 5462/80 | Buy part | |
SCREW, STUD | 5738/401 | Buy part | |
SET BRIDGE | 445/1154 | 445/1/PUW 1001 | Buy part |
SET WHEEL | 450/1016 | /PUW 2502 | Buy part |
STEM | 200/1686F | 405/PUW 1000 | Buy part |
STEM, MALE OA 9.45 | 360/431 | Buy part | |
SWEEP SECOND FRICTION SPRING | 471/227 | Buy part | |
THIRD WHEEL | 210/1299 | 210/PUW 1000 | Buy part |
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