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Return To ShopThe Seiko 1320-5640 watch movement features an Offset Center Wheel, Sweep Seconds, and Calendar functions.
The Seiko 1320-5640 features the following functions:
Ronda Reference # | Shock System | Buy |
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Dimensions | GR Reference # | End Type | Buy |
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1.60 x 0.110 x 340 x 10.0 mm | GR4516 | Manual | Buy mainspring |
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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CLICKSPRING | 430/950 | Buy part | |
MAINSPRING 1.60-.11-340 10 | MS-710P | GR 4516 | Buy part |
SHOCK | 100/2644 | Buy part | |
STEM | 200/1642F | Buy part |
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