Watch appears to be functioning, however, i haven't tested it over a long period of time or checked accuracy.
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Citizen automatic watch.
4-282043KT
071-2892
GN-4-S
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Please check the below, it's for information only from what i could research and could be incorrect:
| Feature | Details |
| Movement | Citizen Calibre 8200A Automatic (Self-winding + hand-winding support) |
| Jewels | 21 Jewels |
| Frequency | 21,600 vibrations per hour (vph) |
| Functions | Hours, minutes, sweep seconds, day/date display (with quickset date) |
| Power Reserve | ~40–42 hours |
| Era | Circa late 1970s to early 1980s |
The
Calibre 8200 movement inside this watch is one of the most reliable and long-lived workhorses in Japanese horology, built to compete directly with Seiko's 7009 and 7S26 movements. Because parts are plentiful and the movement includes a hand-winding function alongside automatic self-winding, these watches remain easy to service and maintain today.