Zenith Chronomaster El Primero Full Open 03.2081.400 42mm — Stainless Steel / Skeleton Dial

The Zenith El Primero is the original integrated automatic chronograph movement, and the Full Open takes that legacy further by cutting away the dial to put the mechanics on display. The 42mm steel case frames a spectacular openwork view of the Caliber 400B — arguably one of the most significant chronograph movement in watchmaking history — beating at a high-frequency 36,600 vph.

The layout is as functional as it is dramatic: 30-minute counter at 3, small seconds at 9, and 12-hour counter with date at 6, all visible through the skeletonized dial.

Reference: 03.2081.400/78.C813

Case: 42mm stainless steel

Dial: Open skeleton with rhodium-plated hands, 30-min counter at 3, small seconds at 9, 12-hour counter and date at 6

Movement: Zenith El Primero Caliber 400B automatic, 36,600 vph, 50-hour power reserve, 31 jewels

Straps:   1 Black leather OEM strap

              1 Bespoke houndstooth cloth and leather strap

Functions: Chronograph, date, small seconds

Water Resistance: 100m

Crystal: Sapphire

Condition: Excellent condition.  Both the watch and the straps have been well cared for.  There are only minor scratches on the case back common with typical use. The outer box shows a little wear.

Ships from the US

The package includes 2 straps, double box, warranty card, card holder, setup guide and instruction manual.