The Bell-Matic is a mechanical automatic watch with a built-in alarm, made by Seiko from 1966 into the mid-1970s. It is one of the most charming and affordable vintage Seikos, and a great conversation piece.
Quick facts
| Spec | Detail |
|---|---|
| Introduced | 1966 |
| Calibers | 4006 (day-date), 4005 (date only, 1968 to 1969, rare) |
| Jewels | 27 on early watches, later 21, 19 or 17 depending on market |
| Winding | Automatic; alarm wound by hand |
| Alarm | Hammer and sounding spring, separate alarm barrel |
| Crown | Single crown at 3 o’clock plus alarm button |
Main references
| Reference | Years | Notes |
|---|---|---|
| 4006-7000/7001/7002 | 1966 to 1974 | Launch models, oval cushion case |
| 4006-7010/7011/7012/7019 | 1967 to 1975 | 7019 is the North American version |
| 4005-7000 | 1968 to 1969 | Date only, rare |
| 4006-600x | 1970s | 44 mm UFO-style or 42 mm carré cases |
| 4006-6080/6089 | Late 1975 to 1976 | Last model produced |
What to check before you buy
- Test the alarm. Wind it, set it a few minutes ahead and listen. A weak or silent alarm needs work.
- Matching parts. Beyond the Dial notes the dial, hands, indicator ring, case and caseback number should all match, because parts are often swapped.
- Caseback style. Before 1974, caseback text runs in a horseshoe; later backs have horizontal text in the centre.
- Integrated bracelets. On models like the 4006-604x, make sure the bracelet is included; replacements are hard to find.
Typical 2026 price for a running, original example in very good condition: $300 – $500 (see the vintage Seiko price guide). Adjust for your watch’s condition and parts in the value calculator. To date it, read the serial number guide or check the Seiko caliber list.
Looking for one?
Garasi Opung, the Jakarta dealer behind this site, hand-checks every vintage Seiko before listing it. Browse the Etsy shop, the eBay store or garasiopung.com, and run any listing’s caseback through the Franken Checker before you buy, ours included.
Frequently asked questions
How does the Seiko Bell-Matic alarm work?
A small hammer, driven by its own spring, strikes a curved metal sounding spring. The alarm has a separate barrel, so using it does not drain the watch’s power reserve.
How do I wind the Bell-Matic alarm?
Push the alarm button in and turn the crown. Beyond the Dial says about 6 turns fully winds it, for around 11 seconds of ringing.
Does the Bell-Matic hand-wind?
No. The watch itself is automatic only; the crown winds just the alarm.