Prospex Speedtimer Mechanical Chronograph. Based on Seiko’s Speedtimer chronographs of the early 1970’s, this powerful creation offers exceptional timekeeping combined with sporty elegance and wearing comfort. The sky-blue patterned dial, framed by a tachymeter scale, displays high contrast subdials, a blue chronograph hand, a date calendar, and LumiBrite hands and markers for outstanding legibility in low light conditions.
Delivering chronograph measurement of up to 12 hours in 1/8-second increments, the proprietary caliber 8R48 34-jewel automatic movement beats at 28,800 vibrations per hour, with a power reserve of approximately 45 hours and manual winding capability. A column wheel and vertical clutch mechanism allow for smooth chronograph operation, while the three-pointed hammer system ensures all hands return to zero in perfect synchronization.
Crafted of stainless steel with a super-hard coating and paired with a multi-row bracelet, this timepiece features a dual-curved anti-reflective sapphire crystal, screwdown caseback, and tri-fold push button release clasp. 10 bar, 100M Water Resistant.
Specifications:
- Case: 42mm, stainless steel with super-hard coating
- Between lugs: 20mm
- Bracelet: stainless steel with tri-fold push-button clasp
- Dial: ice blue patterned dial with black subdials, LumiBrite hands and markers
- Bezel: tachymeter scale
- Movement: Seiko Caliber 8R48, automatic chronograph, approximately 45-hour power reserve
- Crystal: dual-curved sapphire crystal with anti-reflective coating inside
- Caseback: screwdown
- Water resistance: 100m
