The latest 2021 Longines Avigation Big Eye chronograph, model: (L2.816.193.2) watch diamet

The latest 2021 Longines Avigation Big Eye chronograph, model: (L2.816.193.2) watch diameter: 41mm. Movement: 7750 movement, case material: titanium, waterproof depth: 50, equipped with gasoline blue dial 13 French minute, 27 jewel bearings, oscillation frequency of 28,800 times per hour, energy reserve of 54 hours, functional hours and minutes display, small seconds chronograph at 9 o'clock, 60-second central chronograph seconds hand and 30-minute counter at 3 o'clock There is a 12-hour chronograph counter at 6 o'clock, a non-reflective curved synthetic sapphire mirror with a special pattern engraved on the case back, a petrol blue dial with 9 SuperLuminova Arabic numeral hour markers, sandblasted rhodium-plated hour and minute hands, and SuperLuminova luminous coated strap t vintage color leather (calfskin)