CHRONOGRAPH

Brand: Sea-Gull (海鷗). Reference: 816.22.6088. Mechanical, manual winding. Launch date: 2019-Month?-Date? Summer.

Chinese character:
中国空军 - China Air Force. Positioin: on movement plate, visible through case back.
天津手表厂 - Tianjin Watch Factory. Positioin: on movement plate, visible through case back.

MOVEMENT
Mechanical, manual-winding. China Made. Caliber: Sea-Gull ST1901. Column-wheel chronograph. Functions: Hour, minute, second, chronograph (Central hour and minute hands, small seconds hand at 9 o'clock; Central chronograph seconds hand, 30-minute counter at 3 o'clock). No hacking (Seconds hand does NOT stop when crown is pulled out). Jewels: 22. Frequency: 21600 vph. Power reserve: Around 42 hours.

CASE
316L stainless steel. Diameter: 44 mm. Thickness: 13.5 mm. Lug width: 22 mm. Water resistance: 50 meters. Weight: 203 grams (the whole watch including strap). Luminescence: Green lume on hour, minute and seconds hands, and hour markers. Bezel: Black. Tachymeter bezel. Fixed bezel, NOT rotatable. Dial: Black. Crystal: Sapphire crystal. Case back: Screw-down notched. Transparent. Crown: Push-pull. Fluted cylinder shape. Signed with the "S" logo.

BRACELET
Stainless steel links. Push pin, remove link using pin pusher. No quick release: Need tool to remove strap from case. Fit for case lug width: 22 mm. Clasp: Fold-over clasp. Stainless steel clasp.