Zenith El Primero 3620

The Zenith El Primero caliber 3620 is a high-frequency automatic movement beating at 36,000 vph (5 Hz). It features a 1/10th second small seconds indicator at 9 o'clock, driven directly from the escapement, along with a date function at 3 o'clock. The caliber incorporates KIF shock protection and uses a silicon escape wheel and lever. It is the non-chronograph counterpart to the caliber 3600 and powers the Defy Skyline collection introduced at LVMH Watch Week 2022.