D304

Brand: Sea-Gull (海鷗). Reference: 819.87.D304. [Version: Launch year 2026; Champagne dial. View other versions →] Launch date: 2026-August-24.

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

MOVEMENT
Mechanical, manual-winding. China Made. Caliber: Sea-Gull ST1901-2. 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: 14.35 mm. Lug width: 20 mm. Lug to lug: 45.6 mm. Water resistance: 3 ATM. Weight: 68 grams (the whole watch including strap). Luminescence: No lume. Dial: Champagne. Sunburst finish. Applied hour markers and the Sea-Gull's aviation watch logo. Crystal: Sapphire Crystal. Double Domed. Case back: Screw-Down Decagon Shaped. Transparent. Crown:Push-Pull. Fluted Cylinder shape. Stainless Steel crown. Crown not signed.

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.