The Seiko 8123-800H is a watch model based on the 8123 movement.
Parts List
| 300WE4GN00 | crystal |
| 35M82NA1 | crown - crown |
| 35M82NS1 | crown - crown |
| 86400143 | crystal gasket - crystal fixing ring |
| 86566060 | bezel gasket - plastic gasket for bezel |
| B1019S | band - metal band |
| 12C42BSH | hand - hour hand |
| 12C42BSM | hand - minute hand |
| 8123800H61 | others - case |
| 8123800LXB13 | others - dial |
| 81239 | others - machine code |
| 82331709 | others - bezel |
| 0354765 | others - winding stem |
| 0801622 | others - date dial |
| A180BS | others - push pin |
| 13SC04ES | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
Caliber 8123
