FEATURES
Prospex Speedtimer Mechanical Chronograph celebrates Seiko's first precision chronographs, developed for international sporting competitions in 1964, as well as its 1969 introduction of the world's first automatic chronograph. The sharp blue dial and leather deploying clasp strap make it a perfect blend of sport and dress; arrives in a beautiful box and comes with a complimentary Seiko travel case!
- Automatic with manual winding capability
- Chronograph measurement of up to 30 minutes of elapsed time in 1/8-second increments
- Proprietary 8R46 movement includes a column wheel and vertical clutch mechanism allowing for smooth, stutter-free movement of the chronograph hand while providing longer wear and efficiency, and maintaining the power reserve better during chronograph operation
- Vibrant blue dial with LumiBrite hands and markers
- Screwdown see-through caseback
- Tri-fold push button release clasp
SPECIFICATIONS:
CASE DIMENSIONS:
Thickness: 15.1mm
Diameter: 42.5mm
Length: 45.5mm
- Stainless steel case with super-hard coating
- Dual-curved sapphire crystal with anti-reflective coating on the inner surface
- Blue
- Crocodile strap
- Caliber 8R46
28,800 vibrations per hour
34 jewels
Power reserve: approximately 45 hours - 10 bar, 100 meters (330 feet