Seiko Prospex Speedtimer Mechanical Automatic Chronograph – SRQ037
Seiko – Prospex – Speedtimer Mechanical Automatic Chronograph – SRQ037
Inspired by Seiko’s first precision chronographs, developed for international sporting competitions in 1964, and its 1969 introduction of the world’s first automatic chronograph
Chronograph measures up to 30 minutes of elapsed time in 1/8-second increments
Column wheel and vertical clutch mechanism allows for smooth, stutter-free movement of the chronograph hand while providing longer wear and efficiency, and maintaining the power reserve better during chronograph operation
Movement: Automatic, 34 jewels, caliber 8R46
28,800 vibrations per hour Power reserve: 45 hours
Charcoal gray dial
Beige LumiBrite hands and markers
Dual curved sapphire crystal with anti-reflective coating on the inner surface
Screwdown see-through caseback
Case diameter: 42.5mm
Stainless steel case and bracelet with super-hard coating
Tri-fold push button release clasp
Water resistant to 10 bar, 100 meters (330 feet)
