Seiko Calibre 7T84A Quartz Yacht-Timer Chronograph Movement

Restore a compatible multifunction watch with this Seiko Calibre 7T84A analogue quartz movement, featuring yacht-timer, countdown-timer, chronograph, alarm, local-time, and date functions.

The movement displays the main time using hour, minute, and small seconds hands. Its multifunction display includes a mode indicator, central timer and chronograph hands, and a secondary display for the alarm, local time, timer, and chronograph measurements.

Product Specifications

Product Type: Multifunction quartz chronograph movement
Calibre: 7T84A
Display: Analogue
Main Time: Hour, minute, and small seconds
Calendar Function: Date display with quick correction
Yacht-Timer Presets: 5, 6, and 10 minutes
Countdown Timer: Up to 15 minutes
Chronograph Capacity: Up to 12 hours
Chronograph Resolution: 1/5 second
Additional Functions: Alarm and local-time display
Movement Diameter: 27.6 mm
Casing Diameter: 27.0 mm
Movement Height: Approximately 3.3 mm
Driving System: Four step motors
Jewels: 0
Compatible Battery: SR927W
Battery Voltage: 1.55 V
Estimated Battery Life: Approximately 3 years
Accuracy: Approximately ±15 seconds per month
Operating Temperature: -10°C to +60°C
Battery-Life Indicator: Small seconds hand advances at two-second intervals when battery power is low

Package Contents

1 × Seiko Calibre 7T84A Quartz Movement

Not Included: Battery, winding stem, dial, hands, movement holder, pushers, or any other accessories.

Please compare the complete calibre marking, dimensions, stem position, hand fittings, hand-height configuration, date-wheel style, dial feet, and movement holder before ordering.

Professional installation, system resetting, and hand-position calibration are recommended to ensure correct operation.

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