Seiko Calibre 7N43C Day-Date Quartz Watch Movement

The Seiko 7N43C is a three-hand analogue quartz movement featuring hour, minute, central-second, day, and date displays. Its quick-setting calendar mechanism allows the day and date to be adjusted independently during installation and servicing.

Powered by an SR920SW silver-oxide battery, also known as battery number 371, the movement provides an estimated battery life of approximately five years. A battery-life indicator helps signal when battery replacement is approaching.

Movement compatibility depends on the watch case, dial and calendar configuration, hand fittings, stem position, and movement holder. Please compare all specifications with the existing movement before ordering. Professional installation is recommended.

Product Specifications
Calibre: Seiko 7N43C
Movement Type: Analogue Quartz
Time Display: Hour, Minute and Central Seconds
Calendar Function: Day and Date
Calendar Adjustment: Quick-Set Day and Date
Outside Diameter: 26.4mm
Casing Diameter: 25.6mm
Height: 2.78mm
Accuracy: Within ±15 Seconds per Month
Jewels: 1
Battery Type: SR920SW / 371 Silver-Oxide Battery
Battery Voltage: 1.55V
Estimated Battery Life: Approximately 5 Years
Additional Functions: Battery-Life Indicator and Electronic Circuit Reset
Installation: Professional Installation Recommended