Seiko Prospex SRQ055 Speedtimer Automatic Chronograph Black Dial

Movement: Automatic

Caliber: 8R48

Precision: +25 to -15 seconds per day

Power Reserve: Approx. 45 hours

Jewels: 34

Case Material: Stainless steel (super hard coating)

Case Diameter: 42.0mm

Case Height (Thickness): 14.6mm

Case Length (Lug-to-lug): 49.5mm

Crystal: Dual-curved sapphire 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: 197.0mm

Distance Between Lugs: 20mm

Water Resistance: 100 meters

Weight: 191.0g

Features:

• Tachymeter function
• Screw case back
• Chronograph with 30 minutes & 12 hours
• Stop second hand function
• Date display