The Seiko 5Y23-8050 is a watch model based on the 5Y23 movement.
Parts List
| 290W38ZN | crystal |
| 290W38ZN01 | crystal - crystal |
| 45EA2NA1 | crown |
| 45EA2NS1 | crown |
| FH2980B0 | case back gasket |
| FH2980B0A | case back gasket - case back gasket |
| 86565321 | crystal gasket - plastic gasket for crystal |
| 86179411 | bezel gasket - plastic gasket for bezel |
| G1389S | band |
| G1389C-LKG | band - link |
| G1389S-LKS | band - link |
| G1389C | band |
| G1389S-PB1 | clasp - parts for buckle/clasp |
| G1389C-PB1 | clasp - parts for buckle/clasp |
| G1389S-BK1S | clasp - clasp |
| G1389C-BK1S | clasp - clasp |
| G1389C-EPG | others - endpiece |
| 82800261 | others - case ring |
| 0801722 | others - date dial |
| 0866561 | others - holding ring for dial |
| 5Y238050 | others - case back |
| 5Y23805061 | others - case |
| 5Y23805098 | others - case |
| 5Y23807LXB13 | others - dial |
| 5Y23807LXN14 | others - dial |
| 5Y239 | others - machine code |
| 82350701 | others - bezel |
| 82350709 | others - bezel |
| A190CS | others - push pin |
| 0351672 | others - winding stem |
| 0A0150B0A | others - crown and stem gasket |
| 13SC06LS | others - second hand |
| 13SC06LA | others - second hand |
| 12C62LSM | others - minute hand |
| 89995390 | others - pusher spacer |
| 12C62LGM | others - minute hand |
| 12C62LGH | others - hour hand |
| 12C62LSH | others - hour hand |