El Primero 3-hands watch. High frequency movement (5Hz). Fully interchangeable strap system. El Primero 3620, automatic movement. Frequency 36,000 VpH (5 Hz). Power reserve approx. 60 hours. Hours and minutes in the center. Central seconds hand. Date indication at 6 o'clock. Finishes: Special "Pilot artificial horizon" black oscillating weight. 40mm stainless steel case, black with horizontal grooves. Water resistance 10 ATM. Black with horizontal grooves dial. Applied Arabic numerals in SuperLuminova SLN C1. Black & white with SLN C1. Comes with 2 straps: Black cordura-effect rubber strap and a Brown
calfskin leather strap. Steel triple folding clasp.