The Seiko 8123-6140 is a watch model based on the 8123 movement.
Parts List
| 280W34GN00 | crystal - crystal |
| 40M78NS1 | crown - crown |
| 40M78NK1 | crown - crown |
| 40M78N01 | crown |
| FH2882B0A | case back gasket - case back gasket |
| 86567581 | crystal gasket - plastic gasket for crystal |
| 86178600 | bezel gasket - plastic gasket for bezel |
| YA18A | band - band |
| 11C92MKH | others - hour hand |
| 11C92MKM | others - minute hand |
| 0801538 | others - date dial |
| 0884976 | others - holding ring for dial |
| 8123617LXB13 | others - dial |
| 81239 | others - machine code |
| 84305663 | others - dial ring |
| A180CS | others - push pin |
| 812361406B | others - case |
| 82333123 | others - bezel |
| 0354765 | others - winding stem |
| 82706380 | others - case ring |
| 0Z0060B01 | others - crown and stem gasket |
| 13SC04A3 | others - second hand |
Caliber 8123
