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Miyota caliber OS10 is a quartz chronograph watch movement with zero jewels. It is made in Japan.
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High Hand Versions
The caliber 0S10 has two high hand versions: 0S1A and 0S1F.
The base 0S10 movement has the date window at 3:00. This movement is also available with the date at 4:00, between 4:00 and 5:00, as well as at 6:00. Black and white background date wheel versions are available.
Miyota states the accuracy of the caliber 0s10 quartz movement to be +/-20 seconds/month.
The 0S10 chronograph seconds has a quick reset to zero. Miyota calls this the Heart Cam Reset System.
How to Reset to Zero?
If your 0S10 chronograph hands need calibrated back to zero after a battery change, follow the steps below:
Pull the crown to position III (time setting position)
Press pusher A (the top button) to advance the chronograph hand forward. Long pressing will advance the hand rapidly.
When the hand is at zero or 12:00, push the crown back in.
Replacement prices for the Miyota caliber 0S10 movement were found in the range of $25.00 – $31.95 USD.