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Seiko 5Y39-6A90
The JLC caliber 630, also known as the Mechaquartz caliber, is a technically complex movement with a quartz base that powers a mechanical chronograph. With a total of 233 parts, it showcases a date and moonphase display. This movement notably incorporates Incabloc Shock Protection and offers the function of Sweep Seconds. It has been utilized by JLC and IWC.
The Seiko 5Y39-6A90 features the following functions:
- Incabloc Shock Protection
- Sweep Seconds
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|
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 |
|---|---|---|---|
| PALLET ARBOR | 72S/308P | 714/AS 1560 | Buy part |
| ROLLER, INCABLOC 180X75X36 | 82S/147R | 730/AS 1649 | Buy part |
| STAFF, INCA | 100/2429 | Buy part | |
| STEM | 200/1557F | Buy part |
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