SPB391J1

Caliber Number: 6R55
Movement Type: Automatic with manual winding
Precision: +25 to -15 seconds per day
Power reserve: Approx. 72 hours(3 days)
Jewels: 24
Functions:

• Stop seconds hand function

Case Material: Stainless steel
Case Size: 

• Thickness:11.7mm
• Diameter:38.3mm
• Lug-to-lug:46.0mm

Crystal: Box shaped sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
LumiBrite: LumiBrite on Hands
Clasp: Deployment clasp with push button release
Distance between lugs: 19

Water Resistance: 10 bar
Weight: 139.0g
Features:

• Interchangeable band with quick release spring bars
• Screw case back