Story A solar-powered chronograph with deep racing heritage The Seiko Prospex Speedtimer is a racing chronograph that fuses classic 1960s motorsport design with modern solar power. It’s built around an incredibly capable Caliber V192 solar chronograph movement that charges up from any light source and has a six-month power reserve—no battery changes needed. Not impressed? It also has a chronograph function that’s accurate to 1/5th of a second. The 39mm stainless steel case is capped with a curved anti-reflective sapphire crystal, while the striking yellow sand-blasted dial, black sub-dials, and black tachymeter bezel deliver maximum legibility and style. Features LumiBrite on hands and indexes Tachymeter bezel for measuring speed Sapphire crystal lens with anti-reflective coating Solar-powered movement 6-month power reserve when fully charged Materials & Care Case: Stainless steel Lens: Curved sapphire crystal Strap: Stainless steel Made in Japan Specs Case Material Stainless steel Case Size 39 mm Movement Solar quartz Functions Hours, minutes, seconds, date, chronograph, tachymeter, power reserve Band Type Stainless steel bracelet Water Resistance 100 m
