6099 · Grey ring
6099Brand: Sea-Gull (海鷗). Reference: 819.93.6099. [Version: Grey ring. View other versions→].MOVEMENTMechanical, self-winding. China Made. Caliber: Sea-Gull ST17. Functions: Hour, minute, second (Small seconds hand.). Jewels: 17. Frequency: 21600 vph. Power reserve: Around 40 hours.CASE316L stainless steel. Diameter: 39 mm. Thickness: 10.5 mm. Lug width: 20 mm. Water resistance: 50 meters. Weight: 57 grams (the whole watch including strap). Luminescence: No lume. Dial: Not flat. A doughnut shape pops on the dial edge. Crystal: Sapphire crystal. Case back: Screw-down notched. Transparent. Crown: Push-pull. Fluted cylinder shape. Signed with the "S" logo.STRAP Brown. Leather. No quick release: Need tool to remove strap from case. Fit for case lug width: 20 mm. Clasp: Pin buckle. Stainless steel clasp.