Zenith ELPRIMERO arched sapphire glass double-sided sapphire imported 7750 automatic movement

Zenith ELPRIMERO series, ASIA7750 manual mechanical movement chronograph, 42mm, men's material: stainless steel Vibration frequency: 36000 oscillations per hour Number of gems: 39 Number of parts: 248 Power reserve: 50 hours Description: Coaxial escapement Hand-wound chronograph movement, rhodium-plated surface diameter: 42 mm case thickness: 14.05 mm crystal material: curved double-sided anti-glare treatment sapphire crystal strap material: cowhide can be equipped with alligator skin buckle type: folding clasp watch Buckle material: stainless steel Back penetration: back penetration Waterproof depth: 500 meters