This Bell & Ross Heritage Chronograph BR 126-94-SS has a mechanical automatic self-winding ETA caliber 2894 movement. It's rhodium-plated with Glashutte stripe and fausses cotes embellishment, and it's constructed with 37 jewels, a straight-line lever escapement, blued screws, a monometallic balance, and a self-compensating flat balance-spring. The mechanism oscillates at 28,800 vph (4Hz).