Seiko Prospex – Speedtimer Mechanical Chronograph Black Dial Automatic 42mm SRQ055

Description

Movement

Caliber Number: 8R48

Movement Type: Automatic with manual winding

Precision: +25 to -15 seconds per day

Power Reserve: Approx. 45 hours

Jewels: 34

Functions: 

• • Chronograph with 30 minutes & 12 hours
  • Stop second hand function
  • Date display

Case/Band

Case Material: Stainless steel (super hard coating)

Case Size:

• • Thickness: 14.6 mm
  • Diameter: 42.0 mm
  • Lug-to-lug: 49.5 mm

Crystal: Dual-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: 10 bar, 100 meters (330 feet)

Weight: 191.0 g

Features:

• • Tachymeter function
  • Screw case back