The Seiko 5Y23-8A01 is a watch model based on the 5Y23 movement.
Parts List
| 295W69LN01 | crystal |
| 285W93LN01 | crystal |
| 285P05LN03 | crystal |
| 285W93LN | crystal |
| 35ME9NA1 | crown |
| 35ME9NS1 | crown |
| 35ME9NN1 | crown |
| FE298BAA1 | case back gasket - case back gasket |
| DH0100B01 | case back gasket - crown and stem gasket (4h) |
| DH0100B0 | case back gasket |
| FE298BA13 | case back gasket - case back gasket |
| FE298BA1 | case back gasket |
| 86572420 | crystal gasket - plastic gasket for crystal |
| 86172080 | crystal gasket - plastic gasket for crystal |
| 86170800 | bezel gasket - plastic gasket for bezel |
| B1570J | band - metal band |
| B1570K | band - metal band |
| B1570K-LKG | band - link |
| B1601L | band - metal band |
| B1601L-LKG | band - link |
| B1601L-PB1 | clasp - parts for buckle/clasp |
| B1601L-BK1S | clasp - clasp |
| B1570K-PB1 | clasp - parts for buckle/clasp |
| B1570K-BK1G | clasp - clasp |
| 12P21LGH | hand - hour hand |
| 12P21LGM | hand - minute hand |
| 12P55KKH | hand - hour hand |
| 12P55KKM | hand - minute hand |
| 1AB080LCBLA | hand - hour hand |
| 2AB120LCBLA | hand - minute hand |
| 3AA125F1ANG | others - second hand |
| 12SC39T1 | others - second hand |
| 3AA125F3A6S | others - second hand |
| 3AA125F3ANG | others - second hand |
| 12SC23T2 | others - second hand |
| 0351105 | others - winding stem |
| 5Y238A00 | others - case back |
| 5Y238A0161 | others - case |
| 5Y238A0175 | others - case |
| 5Y238A0198 | others - case |
| 5Y238A0MXG18 | others - dial |
| 5Y238A0MXL1L | others - dial |
| 5Y238B61XS14 | others - dial |
| 82340131 | others - bezel |
| 82340139 | others - bezel |
| 82732990 | others - case ring |
| A160BS | others - push pin |
| A180BS | others - push pin |
| 0801722 | others - date dial |
| 12SC23T1 | others - second hand |
| 12P55KGM | others - minute hand |
| 12P55KGH | others - hour hand |