The Seiko 5Y23-6020 is a watch model based on the 5Y23 movement.
Parts List
| 290T10AES1 | crystal |
| 290T10AEG1 | crystal |
| 290T10AE | crystal |
| 35M82NA1 | crown - crown |
| 35M82NS1 | crown - crown |
| FH2781B0 | case back gasket |
| FH2781B01 | case back gasket |
| Z1430K-LKG | band - link |
| Z1430L-LKG | band - link |
| Z1430J | band |
| Z1430K | band |
| Z1430L | band |
| Z1430L-PB1 | clasp - parts for buckle/clasp |
| Z1430K-PB1 | clasp - parts for buckle/clasp |
| Z1430L-BK1S | clasp - clasp |
| Z1430K-BK1G | clasp - clasp |
| 12C58KSH | others - hour hand |
| 12C58KSM | others - minute hand |
| 11C68KKM | others - minute hand |
| 82800261 | others - case ring |
| 0801719 | others - date dial |
| 0801722 | others - date dial |
| 0801926 | others - date dial |
| 0866554 | others - holding ring for dial |
| 5Y236020 | others - case back |
| 5Y23602061 | others - case |
| 5Y23602075 | others - case |
| 5Y23602098 | others - case |
| 5Y23602WXG18 | others - dial |
| 5Y23602WXN14 | others - dial |
| 5Y23602WXS17 | others - dial |
| 5Y236038XG14 | others - dial |
| 5Y23604WXB19 | others - dial |
| 5Y23605WXG18 | others - dial |
| 5Y23605WXN14 | others - dial |
| 5Y23605WXS17 | others - dial |
| 5Y236068XG14 | others - dial |
| 5Y23607WXB19 | others - dial |
| 5Y23611WXS13 | others - dial |
| 5Y236128XS19 | others - dial |
| 5Y239 | others - machine code |
| 82362541 | others - bezel |
| 82362549 | others - decorative bezel |
| A180BS | others - push pin |
| 0351670 | others - winding stem |
| 13SC04A2 | others - second hand |
| 13SC04ES | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
| 12C58LSM | others - minute hand |
| 12C58KGM | others - minute hand |
| 2AA105AMBNG | others - minute hand |
| 11C48ASM | others - minute hand |
| 11C16NGM | others - minute hand |
| 12C58LGM | others - minute hand |
| 11C68KKH | others - hour hand |
| 12C58KGH | others - hour hand |
| 1AA070AMBNG | others - hour hand |
| 11C24ASH | others - hour hand |
| 12C58LGH | others - hour hand |
| 11C16NGH | others - hour hand |