Seiko Prospex SPEEDTIMER SPB515
SeikoMovement
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 second hand function
Case/Band
Case Material: Stainless steel (super hard coating)
Case Size: Thickness: 12.0 mm, Diameter: 39.5 mm, Lug-to-Lug: 44.5 mm
Crystal: Curved sapphire crystal
Crystal Coating: Anti-reflective coating on inner surface
LumiBrite: LumiBrite on hands and index(es)
Clasp: Three-fold clasp with push button release
Bracelet Length: 197.0 mm
Distance Between Lugs: 20 mm
Other Details
Water Resistance: 20 bar
Features: Screw case back