Caliber Number: 6R54
Movement Type: Automatic with manual winding
Precision: +25 to -15 seconds per day
Power reserve: Approx. 72 hours(3 days)
Jewels: 24

Functions:
24-hour hand (dual time display function)
Stop second hand function

Case Material: Stainless steel (Bezel: Stainless steel with ceramic display)

Case Size:Thickness:13.3mmDiameter:42.0mmLug-to-lug:48.6mm
Crystal: Sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
LumiBrite: LumiBrite on hands, index(es) and bezel
Clasp: Three-fold clasp with secure lock & push button release, solid & slide adjuster
Bracelet Length: 200.0mm
Distance between lugs: 20mm
Water Resistance: 300m / 1000ft diver’s
Magnetic Resistance: 4,800 A/m

Features:

Unidirectional rotating bezel

Screw-down crown

Screw case back