Seiko Prospex SRQ053 Speedtimer Chronograph Black Dial Automatic EPURATO Training status automatically evaluates your

Training status automatically evaluates your recent exercise history and performance indicators to let you know if you’re overtraining

which includes an advanced metric altimeter

skeletonized rotors of each automatic movement

The black PVD-plated stainless steel watch case and black steel bracelet both evoke the look and spirit of the legendary black reconnaissance jet

Weight: 125g

Seiko Prospex SRQ053 Speedtimer Chronograph Black Dial Automatic EPURATO Training status automatically evaluates yourCaliber Number: 8R48 Movement Type: Automatic with manual winding Precision: +25 to 15 seconds per day Power Reserve: Approx. 45 hours Jewels: 34 Case Material: Stainless steel (super hard coating) Case Thickness: 14. 6mm Case Diameter: 42. 0mm Lug to Lug: 49. 5mm 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