ST8004ZS

Brand: Sea-Gull (海鷗). Reference: ST8004ZS.  CN ￥52,000 price tag ↗  CN ￥52,000 web capture ↗

MOVEMENT
Mechanical, self-winding. Tourbillon. China Made. Caliber: Sea-Gull ST8004. Functions: Hour, minute, second, date, day-of-the-week (Central hour and minute hands, retrograde date hand at 9 o'clock, retrograde day-of-the-week hand at 3 o'clock, the tourbillon module turns 60 seconds per round and functions as the seconds hand.). No hacking (Seconds hand does NOT stop when crown is pulled out). Jewels: 32. Frequency: 21600 vph. Power reserve: Around 37 hours.

CASE
316L stainless steel. Diameter: 42.8 mm. Thickness: 13 mm. Lug width: 22 mm. Lug to lug: 50.8 mm. Water resistance: 50 meters. Weight: 97 grams (the whole watch including strap). Luminescence: No lume. Dial: White. Crystal: Sapphire crystal. Case back: Fixed with screws. Transparent. Sapphire crystal case back. Crown: Push-pull. Crown shape. Stainless steel crown. Crown not signed. Crown diameter: 7.5 mm.

STRAP
Black. Alligator leather. No quick release: Need tool to remove strap from case. Fit for case lug width: 22 mm. Clasp: Butterfly clasp. Stainless steel clasp.