download zenith el primero 50th anniversary

The mechanism oscillates at 36,000 vph (5 Hz).It’s a story filled with spunk, full of races against time (and competitors), rescue from oblivion, and thrilling evolutions, told through pieces both historic and modern, as well as interactive displays.

It includes a straight-line lever escapement, a monometallic balance, a self-compensating flat balance spring, and an engraved rotor. It's constructed with 39 jewels, 248 components, and a shock absorber device. It is rhodium-plated, with Côtes de Genève and oeil-de-perdrix embellishment. This Zenith El Primero Chronomaster T Open, reference 03.0240.4021/02.C495, runs on a mechanical automatic self-winding Zenith El Primero caliber 4021 column-wheel chronograph movement. It's water resistant to 30 meters/100 feet, and the 13.5mm thick case, dial, and movement are all signed. A 'reserve de march' 50-hour power reserve indicator arch is at the 6 o'clock position, and a 30-minute totalizer sub dial inside a brushed ring is at 3 o'clock. There are steel dauphine hands, with a balanced center sweep chronograph hand. It has a silver guilloche dial with applied steel dart hour markers on a brushed steel reserve with a minute/second track. The gold guilloche rotor is engraved 'El Primero,' with the Zenith star, and 'Swiss made manufacture Le Locle.' The 40mm diameter solid two-body case, fluted downturned lugs, and stepped bezel are polished. It has a screw-down exhibition sapphire display case back secured with 8 screws, engraved with 'Zenith – ChronoMaster – water resistant 30M – Stainless Steel,' and the reference number. There are rectangular chronograph pushbuttons, and a heart-shaped open face area is between 8 and 12 o'clock that shows the escapement. It has an alligator leather strap with a stainless steel deployant buckle, and a scratch resistant sapphire crystal. This is a stainless steel Zenith El Primero Chronomaster T Open, reference 03.0240.4021/02.C495.

More about El Primero SS Chronomaster T Open

Download zenith el primero 50th anniversary