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The Pierce 171 watch movement, also known as AS 340, belongs to a group of movements with various bridge layouts. It is listed in old data sheets with individual designations, along with other movements like 302, 303, 311, 313, 323, 324, 328, 329, 333, 342, 344, 361, 362, 365, 371, 383, 396, 473, 546, 549, 569, 585, 595, 603, 621, 629, 636, 694, 709, 714, 717, 720, 731, 775, 790, 803, 825, 915, and 951. The Pierce 171 movement features manual wind functionality and a sub-second display.
The Pierce 171 features the following functions:
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.50 x 0.100 x 300 x 9.0 mm | GR4122 | Manual | Buy mainspring |
| 1.50 x 0.100 x 290 x 9.0 mm | Manual | Buy mainspring | |
| 1.50 x 0.105 x 280 x 9.0 mm | GR41332 | Manual | Buy mainspring |
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
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