The Seiko 8420-7449 is a watch model based on the 8420 movement.
Parts List
| ES6N64GN00 | crystal |
| 25M10NA1 | crown |
| 0G1500N01 | case back gasket |
| B5245G | band - metal band |
| B5245G-BK6G | clasp - clasp |
| B5245G-PB3 | clasp - parts for buckle/clasp |
| 0354815 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 82705900 | others - case ring |
| 84202230XG14 | others - dial |
| 8420744925 | others - case |
| 84209 | others - machine code |
| 05R11DGM | others - minute hand |
| 05R11DGH | others - hour hand |
| DZ0041B01 | others - crown and stem gasket |
Caliber 8420
