Manufacturer | Seiko |
Caliber Number | 8T67 |
Movement Type | Quartz, battery-powered, mecaquartz |
Lignes | 13.5”’ |
Diameter | 30.8mm x 29.10mm |
Height | 5.1mm |
Jewel Count | 0 |
Quartz Type | Tuning fork |
Frequency | 32,768 Hz |
Accuracy Rating | < 15 seconds/month deviation |
Battery Cell | SR936SW (394) |
Battery Life | ~3 years (depends on chrono usage) |
Hand Count | 3 |
Hand Sizes | 1.5mm / .90mm / .32mm |
Functions | Central hours; central minutes; small seconds at 6:00; central chronograph seconds; 60 minute chronograph counter at 12:00; 12 hour chronograph counter at 9:00; date at 3:00 or 4:30 |
Hacking Seconds? | Yes |
Country of Manufacture | Japan (assembled?) |
Known Models | (Add your watch to the comments below…) |
Seiko caliber 8T67 (8T67A) is a mechaquartz chronograph watch movement. This hybrid caliber (quartz with mechanical chronograph functionality) is made in Japan and has zero (0) jewels. The stopwatch seconds hand on this movement moves in 1/5 second intervals.
Seiko 8T67 vs SII/TMI VK67:
The 8T67 is the Seiko branded version of the calibre VK67 – for Seiko-only watches. Both are Seiko movements.
8T67 vs 8T63:
There is a similar Seiko caliber 8T63 with the main difference being the layout of the chronograph subdials:
8T67: 12-6-9 vertical layout (like a 7750)
8T63: 3-6-9 horizontal layout (like a Rolex Daytona)
Additional Resources:
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