A bold and sporty chronograph crafted with Seiko’s trusted quartz precision, designed for both everyday wear and active lifestyles.
Quartz movement (Caliber 8T63) with ±15 seconds/month accuracy
Chronograph function (up to 60 minutes, 1/5-second increments)
24-hour hand & small seconds sub-dial
Date display
Tachymeter scale on bezel
100m water resistance (10 bar)
Sapphire crystal with high scratch resistance
LumiBrite on hands and indexes for visibility in low light
Case Material: Stainless steel
Case Diameter: 43.0 mm
Thickness: 11.6 mm
Lug-to-Lug: 50.4 mm
Screw case back
Weight: 158 g
Lug Width: 22 mm
Clasp: Three-fold clasp with push button release
Dial Color: Blue
Sapphire crystal for clarity and scratch resistance
Tachymeter bezel for timing/speed calculations
LumiBrite hands and indexes for readability day or night
Water Resistance: 100m (suitable for swimming/snorkeling, not diving)
Magnetic Resistance: 4,800 A/m
Solid stainless steel build with secure clasp
Scratch-resistant sapphire crystal