Chronomaster El Primero Open

A modern chronograph icon. Chronomaster El Primero in steel paired with a rubber strap, with a silver dial bearing the tri-colour counters and an opening revealing the regulating organ with silicon escape wheel and lever. Reference 03.2040.4061/69.R576 Case Size 42mm Case Material Steel Dial Silver-toned sunray-patterned dial with two different-coloured counters Movement El Primero column-wheel chronograph COSC-certified movement Components 282 Frequency 36,000 vPH (5 Hz) Power Reserve 50 Hours Water Resistance 10 ATM Strap Black Rubber Strap Clasp Stainless Steel triple folding clasp