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Seiko 2E20-5739
The Seiko 2E20-5739 watch movement possesses shock protection to enhance its durability. It features a sweep seconds function, ensuring the smooth and continuous movement of the second hand. This movement is equipped with 17 jewels, which serve to reduce friction and enhance its precision.
The Seiko 2E20-5739 features the following functions:
- Shock Protection
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.40 x 0.180 x 440 x 14.5 mm | GR3845 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| BALANCE COMPLETE, INCABLOC | 721/1355 | 722/FF 969 | Buy part |
| ESCAPE WHEEL, S/C | 703/187 | Buy part | |
| PALLET ARBOR | 72S/100P | 714/ENI 1120 | Buy part |
| ROLLER, INCABLOC | 82S/331R | 730/AS 1800 | Buy part |
| STAFF, INCA COL .60 3 ARM | 100/2285 | Buy part | |
| STEM, FEMALE OA9.25 SH3.37 | 360/338 | 404/FF 74 | Buy part |
| STEM, TAP 10 | 200/1728F | Buy part | |
| STEM, X-LONG (27MM) | 200/1383F | Buy part |
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