The Seiko 5Y23-8A00 is a watch model based on the 5Y23 movement.
Parts List
| 285W93LN01 | crystal |
| 285P05LN03 | crystal |
| 35ME9NN1 | crown |
| 35ME9NA1 | crown |
| 35ME9NS1 | crown |
| DH0100B01 | case back gasket - crown and stem gasket (4h) |
| FE298BA13 | case back gasket - case back gasket |
| 86172080 | crystal gasket - plastic gasket for crystal |
| 86170800 | bezel gasket - plastic gasket for bezel |
| B1570C | band - metal band |
| B1570C-LKG | band - link |
| B1570G | band - metal band |
| B1570G-LKG | band - link |
| B1570S | band - metal band |
| B1570G-PB1 | clasp - parts for buckle/clasp |
| B1570G-BK1G | clasp - clasp |
| B1570C-PB1 | clasp - parts for buckle/clasp |
| B1570C-BK1S | clasp - clasp |
| 12P55KKH | hand - hour hand |
| 12P55KKM | hand - minute hand |
| 1AB080LCBLA | hand - hour hand |
| 1AB080LCBLG | hand - hour hand |
| 2AB120LCBLA | hand - minute hand |
| 2AB120LCBLG | hand - minute hand |
| 3AA125F3A6S | others - second hand |
| 3AA125F3ANG | others - second hand |
| 0351105 | others - winding stem |
| 12SC23T2 | others - second hand |
| 5Y238A00 | others - case back |
| 5Y238A0061 | others - case |
| 5Y238A0075 | others - case |
| 5Y238A0098 | others - case |
| 5Y238A0LXG18 | others - dial |
| 5Y238A0LXL1L | others - dial |
| 5Y238A0LXN14 | others - dial |
| 5Y238A0LXS17 | others - dial |
| 82340171 | others - bezel |
| 82340179 | others - bezel |
| 82732990 | others - case ring |
| A160BS | others - push pin |
| 0801722 | others - date dial |
| 12P55KSH | others - hour hand |
| 12SC23T1 | others - second hand |
| 12P55KSM | others - minute hand |
| 12P55LGM | others - minute hand |
| 12P55KGM | others - minute hand |
| 1AB080LCBLC | others - hour hand |
| 2AB120LCBLC | others - minute hand |
| 12P55KGH | others - hour hand |
| 12P55LGH | others - hour hand |