The Seiko 7T27-7A20 is a watch model based on the 7T27 movement.
Parts List
| 320W40GN00 | crystal - crystal |
| 0351580 | crown - winding stem |
| 40M82NS1 | crown |
| FH3081B01 | case back gasket |
| 86566880 | crystal gasket - plastic gasket for crystal |
| 86178710 | bezel gasket - plastic gasket for bezel |
| 80604289 | pusher - button |
| NO | band - leather band |
| LOCAL | band - band |
| 1CA037A0BEA | others - small hand (9h) |
| 3AA035F0AAA | others - sub hand |
| 1AB080L4BS1 | others - hour hand |
| 2BB125L8BS1 | others - minute hand |
| 3AX130F0ASZ | others - second hand |
| 2BB125L8BES | others - minute hand |
| 2BB125L6BEA | others - minute hand |
| 2BB125L8BSH | others - minute hand |
| 1AB080L4BES | others - hour hand |
| 1AB080LMBEA | others - hour hand |
| 1AB080L4BSH | others - hour hand |
| 81400709 | others - button spring clip |
| 81350540 | others - button spring |
| EG0060B01 | others - button gasket |
| 0866599 | others - holding ring for dial |
| 0878536 | others - date dial |
| 42597020 | others - back plate |
| 7T274 | others - machine code |
| 7T277A2061 | others - case |
| 7T277A28XB19 | others - dial |
| 7T277A2LXB19 | others - dial |
| 7T277A2WXB19 | others - dial |
| 7T277A30XB19 | others - dial |
| 7T277A38XB19 | others - dial |
| 7T277C58XB19 | others - dial |
| 84323863 | others - dial ring |
| 86510149 | others - conducting plate |
| 7T277A20 | others - case back |
| 7T277A2061Z | others - case |
| 82285509 | others - bezel |
| 3AX130F0ALD | others - second hand |
| 81400829 | others - button spring clip |
| 3AA125F0ANA | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
Other models with the same movement