The Seiko 8123-8009 is a watch model based on the 8123 movement.
Parts List
| 300WE4GN00 | crystal |
| 300WE6GN00 | crystal |
| 35M82NA1 | crown - crown |
| 35M82NS1 | crown - crown |
| 86400141 | crystal gasket - crystal fixing ring |
| 86400142 | crystal gasket - crystal fixing ring |
| 86400144 | crystal gasket - crystal fixing ring |
| 86566060 | bezel gasket - plastic gasket for bezel |
| KPA02G | band - band |
| B1019C | band - metal band |
| B1019C-LKG | band - link |
| B1019G | band - metal band |
| B1019S | band - metal band |
| BPA08G | band - leather band |
| BPA17G | band - leather band |
| KPJ02G | band - leather band |
| B1019G-LKG | band - link |
| B1019G-PB1 | clasp - parts for buckle/clasp |
| B1019G-BK1G | clasp - clasp |
| B1019C-PB1 | clasp - parts for buckle/clasp |
| B1019C-BK1S | clasp - clasp |
| 12C42MLH | hand - hour hand |
| 12C42MLM | hand - minute hand |
| 12C42MPH | hand - hour hand |
| 12C42MPM | hand - minute hand |
| 8123800961 | others - case |
| 8123800975 | others - case |
| 8123800998 | others - case |
| 8123800LXG18 | others - dial |
| 8123800LXN14 | others - dial |
| 8123800LXS17 | others - dial |
| 81238030XG19 | others - dial |
| 81239 | others - machine code |
| 82331701 | others - bezel |
| 82331709 | others - bezel |
| B1019C-EPG | others - endpiece |
| 0354765 | others - winding stem |
| 0801622 | others - date dial |
| A180BS | others - push pin |
| B1019G-EPG | others - endpiece |
| 13SC04A2 | others - second hand |
| 13SC04ES | others - second hand |
| 12C42BGM | others - minute hand |
| 0Z0060B01 | others - crown and stem gasket |
| 12C42BGH | others - hour hand |
| 13C16AGM | others - minute hand |
| 13C16AGH | others - hour hand |
Caliber 8123
