Product Number SBTQ039 Brand Name Seiko (Authentic) Series Name Seiko Spirit Movement Quartz (Battery-powered) Caliber Number 7T92 Accuracy Average monthly deviation ±15 seconds Gender Men's Material Case: Stainless Steel Case Back: Stainless Steel Crystal: Hardlex Bracelet: Stainless Steel Color Dial Color: White Case Color: Silver Bracelet Color: Silver Water Resistance Daily Use Enhanced Water Resistance (10 ATM) Size Case Size: Approx. 46 x 38.5 x 9.6 mm (Height x Width x Thickness, excluding crown) Wrist Circumference: Max approx. 19.8cm (Spring Bar Type) Weight: Approx. 112g Calendar Date Calendar Features Lumibrite: Yes (Hands & Indexes) Magnetic Resistance: No Screw-Down Back Double Lock Clasp Tachymeter Scale Stopwatch Function (1/20-second measurement, 12-hour counter) Blank warranty card included; not stamped or dated