The Seiko SKZ312 is a mechanical automatic watch with movement-case reference 7S36-04S0. It houses the 7S36 caliber with 23 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. | SKZ312 Depending on the region, bracelet model and other features you may find this watch reference written as SKZ312J, SKZ312J1, SKZ312J2, SKZ312K, SKZ312K1, SKZ312K2, SKZ312P, SKZ312P1, SKZ312P2, etc. |
| Case-movement ref. | 7S36-04S0 |
| Case-Dial code | 04S-06F |
| Caliber | 7S36 |
| Type | mechanical automatic |
| Jewels | 23 |
| Power reserve | 41 hours |
| Hand-winding | no |
| Stop seconds hand | no |
| Crystal | |
| Strap/Bracelet ref. | 302N1AM |