D304

Brand: Sea-Gull (海鷗). Reference: 819.17.D304. Mechanical, manual winding. Launch date: 2024-May-24.

Reissue of the first Chinese aviation chronograph wristwatch for Chinese Air Force back to the 1960s.

Chinese character:
22 ZUAN (钻/占) - 22 JEWELS. Position: 6 o'clock on dial.
ZHONGGUO (中国) - China. Position: 6 o'clock on dial.
TIANJIN (天津) - Tianjin city. Position: 6 o'clock on dial.
天津手表厂 - Tianjin Watch Factory. Position: on case back.
中国 - China. Position: on case back.

MOVEMENT
Mechanical, manual-winding. China Made. Caliber: Sea-Gull ST19. Column-wheel chronograph. Functions: Hour, minute, second, chronograph (Central hour, minute and chronograph seconds hands, small seconds hand at 9 o'clock, 30-minute counter at 3 o'clock.). Jewels: 22. Frequency: 21600 vph.

CASE
316L stainless steel. Diameter: 40 mm. Thickness: 14 mm. Lug width: 20 mm. Water resistance: 30 meters. Luminescence: No lume. Dial: Sunburst finish. Applied hour markers and the Sea-Gull's aviation watch logo. Crystal: Sapphire crystal. Double domed. Case back: Screw-down decagon shaped. Not transparent. 316L stainless steel case back. Crown: Push-pull. Fluted cylinder shape. Signed with the "S" logo.

STRAP
Black. Cowhide leather. No quick release: Need tool to remove strap from case. Fit for case lug width: 20 mm. Clasp: Pin buckle. Stainless steel clasp. (Additional strap: Army-green. Nylon. Fit for case lug width: 20 mm. Clasp of additional strap: Pin buckle. Stainless steel material.)