Manufacturer | Hattori aka Seiko Instruments Inc. (SII) |
Caliber Number | VK83, VK83A |
Type | Quartz (mecaquartz) |
Diameter | 13 1/2”’ (30.8mm x 29.10mm) |
Thickness | 5.10mm |
Battery Cell Number | 394 |
Frequency | Unknown (please comment below) |
Quartz Type | Tuning fork type quartz crystal |
Stem | 351177/tap 10 or 351892/tap 11 |
Hand Sizes | 1.50/.90/.32mm |
Jewels | 0 |
Functions | Hours, minutes, small seconds, date, central chronograph seconds, 20 minute counter, 24 hour indicator |
Country of Manufacture | Japan (assembled) |
Known Models | Add to the comments below… |
The Seiko SII caliber VK83is part of the hybrid mechanical quartz (mecaquartz) movement line. It is a chronograph movement that uses quartz technology for the main functions of the watch, and a mechanical module for operating the chronograph. Learn more here.
Time Module/Seiko states that the expected accuracy of this movement is less than +/- 20 seconds per month at normal temps. The battery life is about 3 years with normal operation.
Battery replacement:
After installing a fresh battery cell, remember to reset the circuit by touching the AC terminal of the circuit block (look for an arrow labeled AC pointing to a hole) and the switch spring with your tweezers.
Replacement prices of about $35.95 found online.
You might find the caliber VK83 listed as being produced by SII aka Hattori aka TMI (Time Module Inc) aka Seiko Instruments Inc. Learn more about the different names here. Other calibers with the same base movement are VK63 and VK67.
Trending Comments
Longines Caliber L836.6
The differenece is the beat rate. 3Hz vs 5Hz. 6 beats/s vs 10 beats/s.
Orient Caliber F6922
I've had my Mako and Ray Orient watches with these calibers, I guess. Their performance…
Invicta Caliber JSD-006ZY
Apart from the fact, that there is no further information about this caliber anywhere, it…
Seiko Instruments (SII) Caliber VH31
the VH-31 movement coupled with solar or kinetic in a Seiko watch would sell like…
Miyota/Citizen Caliber 9051
I have the 9051 in my Fujitsubo, it appears to be within 3 seconds. I'll…
Active Caliber Listings
It might be a Chinese Standart-movement aka Tong Ji aka 7120 / SS7 with an…
Thank you for sharing your experience with the community. If possible, please submit images of…
Apart from the fact, that there is no further information about this caliber anywhere, it…
This £80 lorus has the y676c with Japan on the rotor
Minute hand on some ETA's 2-hand quartz movements run every 20 secs so that the…