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Your wrist movement winds the mainspring. No battery to replace. Choose the NH35 for time and date, or the NH34 GMT to track a second time zone with an extra 24-hour hand.
The Mechanics, Explained
Both movements support hand-winding and hacking: the seconds hand stops when you set the time. Their 3 Hz rhythm gives six small steps of the seconds hand each second. Jewels reduce friction at key bearing points. The manufacturer’s stated static accuracy is −20 to +40 seconds per day under test conditions; real-world performance depends on wear and winding.
NH35 reference animation shown. Rotor finish and markings may vary.
Movement Reference ↗
