Seiko Prospex SPB515 Speedtimer Automatic 3 Days Grey Dial

Movement: Automatic

Caliber: 6R55

Precision: +25 to -15 seconds per day

Power Reserve: Approx. 72 hours (3 days)

Jewels: 24

Case Material: Stainless steel (super hard coating)

Case Diameter: 39.5mm

Case Length (Lug-to-lug): 44.5mm

Case Height (Thickness): 12.0mm

Crystal: Curved sapphire crystal

Crystal Coating: Anti-reflective coating on inner surface

Clasp: Three-fold clasp with push button release

Bracelet Length: 197.0mm

Distance Between Lugs: 20mm

Water Resistance: 200 meters

Functions:

• Stop second hand function
  
• Screw case back