The Seiko 7T42-7A00 is a watch model based on the 7T42 movement.
Parts List
| 280WD8HK01 | crystal - crystal |
| 280WD0HK01 | crystal |
| 35MK2NA1 | crown |
| 0351580 | crown - winding stem |
| 0A2880B0A | case back gasket |
| 86567580 | crystal gasket - plastic gasket for crystal |
| 80601361 | pusher |
| EC0060B01 | pusher - pusher gasket |
| B1637S | band |
| B1637C-LKG | band - link |
| B1637G-LKG | band - link |
| B1637S-LKS | band - link |
| B1637G | band |
| B1637C | band |
| BPK15G | band |
| B1637S-PB1 | clasp - parts for buckle/clasp |
| B1637G-PB1 | clasp - parts for buckle/clasp |
| B1637S-BK2S | clasp - clasp |
| B1637C-PB1 | clasp - parts for buckle/clasp |
| B1637G-BK2G | clasp - clasp |
| B1637C-BK2S | clasp - clasp |
| 03E34TG | hand - small hand (9h) |
| 04E40DG | others - sub hand |
| 04E40CG | others - small hand (6h) |
| 04E32HG | others - sub hand |
| 04E32TG | others - small hand(12h) |
| 82814140 | others - case ring |
| 0866606 | others - holding ring for dial |
| 0878527 | others - date dial |
| 0878529 | others - date dial |
| 7T423 | others - machine code |
| 7T427A00 | others - case back |
| 7T427A006Y | others - case |
| 7T427A0075 | others - case |
| 7T427A0098 | others - case |
| 7T427A00XS14 | others - dial |
| 7T427A10XL14 | others - dial |
| 7T427A10XS14 | others - dial |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| EC0060B0A | others - button gasket |
| 03E34HG | others - (hand(special)) |
| 81350540 | others - button spring |
| 11TC0NGH | others - hour hand |
| 81400683 | others - button spring clip |
| 13SC04A2 | others - second hand |
| 13SC04AB | others - second hand |
| 13SC04A1 | others - second hand |
| 04Y06NGH | others - hour hand |
| 81400829 | others - button spring clip |
| 11TE4NGM | others - minute hand |
| 11TE4AGM | others - minute hand |
| 04Y06FGH | others - hour hand |
| 11TC0FGH | others - hour hand |
Caliber 7T42







Other models with the same movement
| 7T42-6A00 |
| 7T42-6A0A |
| 7T42-6A0B |
| 7T42-6A10 |
| 7T42-6A20 |
| 7T42-6A49 |
| 7T42-6A50 |
| 7T42-6A5A |
| 7T42-6A60 |
| 7T42-6A6A |
| 7T42-7A10 |
| 7T42-7A20 |
| 7T42-7A2A |
| 7T42-7A39 |
| 7T42-7A40 |
| 7T42-7A4A |
| 7T42-7A4B |
| 7T42-7A50 |
| 7T42-7A5A |
| 7T42-7A5B |
| 7T42-F010 |
| 7T42-F01A |