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9R Spring Drive

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  • 9R Spring Driveについて


Driving system Spring Drive
Caliber No. 9R86
Case Stainless steel Case back: Stainless steel and sapphire crystal
Glass High definition dual-curved sapphire crystal
Coating Anti-reflection coating on inner surface
Clasp Three-fold clasp with push button release
Lumibright -
Accuracy ±1 per day (±15 seconds per month)
Water resistance 10 bar
Magnetic resistance 4800 A/m (60 gauss)
Weight 187.0 g
Case size Diameter 43.5mm  Thickness 16.1mm
Remarks ・Screw down crown
・Screw back
・See-through back
・Dual time function with 24-hour display
・Stop watch
・Power reserve display function
・Quick correction function of time difference adjusting to a calender
・Power reserve: Over 72 hours