The Seiko Y187-7A30 is a watch model based on the Y187 movement.
Parts List
| 320P12LR02 | crystal - crystal |
| 0351580 | crown - winding stem |
| 8K70A0SNW1 | crown - crown (3h) |
| FH3080B0A | case back gasket - case back gasket |
| 86566880 | crystal gasket - plastic gasket for crystal |
| 86566881 | crystal gasket - plastic gasket for crystal |
| 40A11SMS0A | pusher |
| A40A11SMS0A | pusher - button |
| 4HA3JZ | band - rubber band |
| 4765JM | band - band |
| 4765JM-LK2 | band - link |
| 4765JM-BKD | clasp - buckle |
| 4765JM-PB1 | clasp - parts for buckle |
| 3AX110F3ASV | others - second hand |
| 1CX040F0BNS | others - small hand (9h) |
| 1CX040F0BNB | others - small hand (9h) |
| 1CX040F0BAW | others - small hand (9h) |
| 3AX110F3ASM | others - second hand |
| 3AX110F3ASR | others - second hand |
| 3BX040F0BNS | others - sub hand |
| 3BX040F0BNB | others - sub hand |
| 3BX040F0BAW | others - sub hand |
| 3BX040F0BAR | others - small hand(12h) |
| 1AX080F8BSS | others - hour hand |
| 2AX120FNBSS | others - minute hand |
| 3AX110F3ASS | others - second hand |
| 3AX110F3ASW | others - second hand |
| 83200273 | others - button spring clip |
| 81351630 | others - button spring |
| AD006BAD1 | others - crown and stem gasket |
| 0866601 | others - holding ring for dial |
| 0878527 | others - date dial |
| 0878536 | others - date dial |
| Y1877A3061X | others - case |
| Y1877A3061Y | others - case |
| Y1877A3061Z | others - case |
| Y1877A3061W | others - case |
| Y1877A30 | others - case back |
| Y1877A3061V | others - case |
| Y1877A3061T | others - case |
| 84328223 | others - dial ring |
| 84328224 | others - dial ring |
| 84328225 | others - dial ring |
| 84328226 | others - dial ring |
| 84328227 | others - dial ring |
| 84328228 | others - dial ring |
| A220CS | others - push pin |
| Y1876 | others - machine code |
| Y1877A18X913 | others - dial |
| Y1877A18X92Z | others - dial |
| Y1877A18X93Z | others - dial |
| Y1877A18X943 | others - dial |
| Y1877A18X953 | others - dial |
| Y1877A18X963 | others - dial |
| Y1877A18XB13 | others - dial |
| 0Z0060B01 | others - crown and stem gasket |
Other models with the same movement