Tissot A660/760 For Calibration

This Tissot watch 25 Jewels was sent for calibration. Reading on the screen of the timegrapher shows a perfect  tuning.

Seiko Diver's 200m for Calibration

This Seiko Diver's 200M (7S36-04P0) was sent for calibration. It has a beat error of 4.3ms. After calibration, it gives a perfect reading on the timegrapher.

Seiko Sushi 6119-7160 for Calibration

This Seiko Sushi was brought in for calibration. After fine tuning, it's almost as good as a Chronometer watch.
Model No. 6119-7160
Year 1969

Seiko 6119-6023 for Calibration

This Seiko 5 Sports watch was sent for crystal polishing as the original crystal is not available anymore.
Model No. 6119-6023
Circa 1970's