The Seiko SKXA63 is a mechanical automatic watch with movement-case reference 7S26-7020. It houses the 7S26 caliber with 21 jewels, running at 21600 bph with an accuracy of +45/-35 seconds per day. It has a 41 hours power reserve, no hand-winding and no stop seconds hand function.

| Ref. | SKXA63 Depending on the region, bracelet model and other features you may find this watch reference written as SKXA63J, SKXA63J1, SKXA63J2, SKXA63K, SKXA63K1, SKXA63K2, SKXA63P, SKXA63P1, SKXA63P2, etc. |
| Case-movement ref. | 7S26-7020 |
| Case-Dial code | 702-113 |
| Caliber | 7S26 |
| Type | mechanical automatic |
| Jewels | 21 |
| Power reserve | 41 hours |
| Hand-winding | no |
| Stop seconds hand | no |
| Crystal | hardlex |
| Strap/Bracelet ref. | 4D41ZZ |
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Case reference: 7S26-7020
Case-Dial code: 702-113
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SKX171
Case reference: 7S26-7020
Case-Dial code: 702-113
Type: Mechanical Automatic
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Jewels: 21
Power reserve: 41 hours