Cal. No. A010
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Here are introduced the main features and specifications of the A010 movement.
You can go to pages for further explanation of features from here.
± 5-second yearly time accuracy
This is a high precision watch realizing Approximately±5-second yearly time accuracy.
Eco-Drive
No periodical battery replacement is needed. This watch is fueled by light.
Perpetual calendar
No need for monthly and leap-year date correction until February 28, 2100.