The Seiko 4S15-8050 is a watch model based on the 4S15 movement.
Parts List
| 290P01SN05 | crystal - crystal |
| 220P01H30A | crystal - crystal |
| 9M45C5SNW0 | crown - crown |
| 9M45C5NNG0 | crown - crown |
| FE308BA13 | case back gasket - case back gasket |
| DB0055B01 | case back gasket - crown and stem gasket |
| 86592790 | crystal gasket - plastic gasket for crystal |
| 86582731 | crystal gasket - plastic gasket for crystal |
| 86600930 | bezel gasket - plastic gasket for bezel |
| 44H4LM | band - band |
| 44H4JM | band - band |
| 44H4JM-LKS | band - link |
| 44H4LM-LKG | band - link |
| 44H4JM-BK2S | clasp - buckle |
| 44H4JM-PB1 | clasp - parts for buckle |
| 44H4LM-BK2G | clasp - buckle |
| 44H4LM-PB1 | clasp - parts for buckle |
| 3BX125F7BSG | others - second hand |
| 3BX125F7BSS | others - second hand |
| 2FB115LFBTG | others - minute hand |
| 2FB115LFBTS | others - minute hand |
| 1FB075LBBTG | others - hour hand |
| 1FB075LBBTS | others - hour hand |
| 81606439 | others - bracelet fixing pin |
| 81190075 | others - bracelet fixing pipe |
| 82862730 | others - case ring |
| 4S15805061A | others - case |
| 82293239 | others - bezel |
| 0354132 | others - winding stem |
| 0878190 | others - date dial |
| 0884371 | others - holding ring for dial |
| 4S1580506YA | others - case |
| 82293235 | others - bezel |
| 4S1520 | others - machine code |
| 4S158084XS13 | others - dial |
| 4S158084XS14 | others - dial |
Caliber 4S15
Other models with the same movement
| 4S15-0020 |
| 4S15-00A0 |
| 4S15-6000 |
| 4S15-6010 |
| 4S15-7000 |
| 4S15-7010 |
| 4S15-7020 |
| 4S15-7030 |
| 4S15-7040 |
| 4S15-8000 |
| 4S15-8030 |