The Seiko 5Y23-8180 is a watch model based on the 5Y23 movement.
Parts List
| 290W36GN | crystal |
| 290W36GN00 | crystal |
| 35M82NA1 | crown - crown |
| 35M82NS1 | crown - crown |
| FH2981B01 | case back gasket - case back gasket |
| FH2981B0 | case back gasket |
| 86574981 | crystal gasket |
| 86179411 | bezel gasket - plastic gasket for bezel |
| Z1563K | band |
| Z1563C | band - metal band |
| Z1563S | band |
| Z1563C-LKG | band - link |
| Z1563G-LKG | band - link |
| Z1563K-LKG | band - link |
| Z1563L-LKG | band - link |
| Z1563J | band - band |
| Z1563L | band - band |
| Z1563G | band |
| Z1563C-BK1S | clasp - clasp |
| Z1563K-PB1 | clasp - parts for buckle/clasp |
| Z1563G-PB1 | clasp - parts for buckle/clasp |
| Z1563K-BK1G | clasp - clasp |
| Z1563C-PB1 | clasp - parts for buckle/clasp |
| Z1563G-BK1G | clasp - clasp |
| Z1563L-BK1S | clasp - buckle |
| Z1563L-PB1 | clasp - parts for buckle |
| 12C52MSH | others - hour hand |
| 12C52MSM | others - minute hand |
| 0351670 | others - winding stem |
| 0801722 | others - date dial |
| 0801723 | others - date dial |
| 0866559 | others - holding ring for dial |
| 5Y238180 | others - case back |
| 5Y23818061 | others - case |
| 5Y23818061Z | others - case |
| 5Y23818075 | others - case |
| 5Y23818075Z | others - case |
| 5Y23818098 | others - case |
| 5Y23818098Z | others - case |
| 5Y23824LXS13 | others - dial |
| 5Y23824WXS13 | others - dial |
| 5Y23825LXB19 | others - dial |
| 5Y23825WXB19 | others - dial |
| 5Y23826LXB13 | others - dial |
| 5Y23826LXG14 | others - dial |
| 5Y23826LXN14 | others - dial |
| 5Y23826LXS13 | others - dial |
| 5Y23826WXB13 | others - dial |
| 5Y23826WXG14 | others - dial |
| 5Y23826WXN14 | others - dial |
| 5Y23826WXS13 | others - dial |
| 5Y23853WXB13 | others - dial |
| 5Y23853WXG14 | others - dial |
| 5Y23853WXS13 | others - dial |
| 5Y239 | others - machine code |
| 82352241 | others - bezel |
| 82352249 | others - bezel |
| A200BS | others - push pin |
| 82800261 | others - case ring |
| 13SC06LS | others - second hand |
| 13SC06LA | others - second hand |
| 13SC04A2 | others - second hand |
| 13SC04ES | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
| 12C42KSM | others - minute hand |
| 12C52MWM | others - minute hand |
| 12C42KSH | others - hour hand |
| 2AX120F4BLS | others - minute hand |
| 12C52MGM | others - minute hand |
| 12CA6LGM | others - minute hand |
| 12CA6LSM | others - minute hand |
| 12C52MWH | others - hour hand |
| 1AX080F0BLS | others - hour hand |
| 12C52MGH | others - hour hand |
| 12CA6LGH | others - hour hand |
| 12CA6LSH | others - hour hand |