The Seiko 7S26-0550 is a watch model based on the 7S26 movement.
Parts List
| 310W17LN00 | crystal - crystal (inorganic) |
| 9M40B3SNW0 | crown - crown |
| 9M40B3BNG0 | crown - crown (4h) |
| FH2980B02 | case back gasket - case back gasket |
| DB0055B01 | case back gasket - crown and stem gasket |
| EZ2890B04 | crystal gasket - crystal gasket |
| B1686G | band - band |
| B1687G | band - band |
| B1687J | band - band |
| B1686S | band - band |
| B1687S | band - band |
| B1687K | band - band |
| B1686G-LKG | band - link |
| B1687G-LKG | band - link |
| B1687K-LKG | band - link |
| B1687K-PB1 | clasp - parts for buckle |
| B1687G-PB1 | clasp - parts for buckle |
| B1686G-PB1 | clasp - parts for buckle |
| B1686G-BK1G | clasp - buckle |
| B1687G-BK1G | clasp - buckle |
| B1687K-BK1G | clasp - buckle |
| 1FA080LCBSK | others - hour hand |
| 1FB075LCBLG | others - hour hand |
| 2FA120LFBSK | others - minute hand |
| 2FB120LDBLG | others - minute hand |
| 3BA135F1BNG | others - second hand |
| 3BA135F1BNS | others - second hand |
| 1FB075LCBSC | others - hour hand |
| 1FB075LCBSE | others - hour hand |
| 2FB120LDBSC | others - minute hand |
| 2FB120LDBSE | others - minute hand |
| 1FB075LCBSA | others - hour hand |
| 2FB120LDBSA | others - minute hand |
| 1FA080LCBSF | others - hour hand |
| 2FA120LFBSF | others - minute hand |
| 82331179 | others - bezel |
| 82331171 | others - bezel |
| 0351260 | others - winding stem |
| 86621370 | others - plastic gasket for crystal |
| 7S26055001A | others - case |
| 7S26055001D | others - case |
| 7S26055002A | others - case |
| 7S260550 | others - case back |
| 7S26055002D | others - case |
| 0878280 | others - date dial |
| 7S260454XB13 | others - dial |
| 7S260454XG14 | others - dial |
| 7S260454XS14 | others - dial |
| 7S260460XB13 | others - dial |
| 7S260460XG14 | others - dial |
| 7S260460XN14 | others - dial |
| 7S260460XS13 | others - dial |
| 7S260464XB13 | others - dial |
| 7S260464XG14 | others - dial |
| 7S260464XN14 | others - dial |
| 7S260464XS13 | others - dial |
| 7S26081RXB14 | others - dial |
| 7S26081RXG14 | others - dial |
| 7S26081RXL14 | others - dial |
| 7S26081RXN14 | others - dial |
| 7S26081RXS14 | others - dial |
| 7S2623B | others - machine code |
| 7S2623N | others - machine code |
| S190CS | others - push pin |
| 3BA135F1BAB | others - second hand |
| 250PS1L40A | others - (crystal(case back)) |
Caliber 7S26
