The Seiko 7A38-728B is a watch model based on the 7A38 movement.
Parts List
| 310W62JN | crystal |
| 310W62JN01 | crystal |
| 35M82NS1 | crown - crown |
| 45M74NA1 | crown - crown |
| 45M74NS1 | crown - crown |
| FH3181B01 | case back gasket - case back gasket |
| EG0060B0 | case back gasket |
| FH3181B0 | case back gasket |
| 86565100 | crystal gasket - plastic gasket for crystal |
| 86178990 | bezel gasket - plastic gasket for bezel |
| 80601801 | pusher - button |
| B1627C | band - metal band |
| B1627C-LKG | band - link |
| B1627C-PB1 | clasp - parts for buckle/clasp |
| B1627C-BK1S | clasp - clasp |
| 12BH2KLH | hand - hour hand |
| 12BH2KLM | hand - minute hand |
| 04E14AB | others - sub hand |
| 0801593 | others - date dial |
| 7A38710LXN18 | others - dial |
| 7A38728B | others - case back |
| 7A38728B98 | others - case |
| 7A389 | others - machine code |
| 82344861 | others - bezel |
| 84311025 | others - dial ring |
| A200BS | others - push pin |
| 0354728 | others - winding stem |
| 81350540 | others - button spring |
| EG0060B01 | others - button gasket |
| 81400683 | others - button spring clip |
| 0Z0060B01 | others - crown and stem gasket |
| 81400829 | others - button spring clip |
| 13SC06LC | others - second hand |
Caliber 7A38
