The Seiko Prospex Speedtimer SSC931 is a solar-powered chronograph heavily inspired by Seiko's rich sports timing heritage, featuring a "Panda" style dial layout and a distinctive multi-link bracelet.
Below are the detailed specifications for the watch:
Movement & Performance
Caliber Number: 8B63 (Solar Chronograph)
Power Source: Powered by any light source (solar energy); no battery changes required.
Power Reserve: Approximately 6 months when fully charged.
Accuracy: ±15 seconds per month.
Functions: Overcharge prevention function, 24-hour hand, chronograph up to 60 minutes in 1/5 second increments, and date display.
Case & Dimensions
Case Material: Stainless steel.
Case Diameter:41.4 mm
Thickness: 13.0 mm
Lug-to-Lug: 48.0 mm
Crystal: Curved sapphire crystal with an anti-reflective coating on the inner surface.
Bezel: Fixed tachymeter bezel with a black insert.
Dial & Band
Dial Color: Textured gray/black dial with contrasting dark sub-dials (Panda style layout).
LumiBrite: Luminescent coating on the hands and indexes for high visibility in the dark.
Band Material: Stainless steel multi-link bracelet.
Clasp: Three-fold clasp with a secure push-button release.
Additional Features
Water Resistance:10 bar (100 meters / 330 feet), suitable for swimming and snorkeling.