Zenith Chronomaster El Primero Open Tour Auto Edition

Zenith has created a special edition Chronomaster El Primero Open Tour Auto timepiece to celebrate its association with the 2017 Tour Auto Optic 2ooo motor sports event that held from April 24th to 30th.

This exclusive watch features elegant bodywork, powerful engine and tricolour accents. The Chronomaster El Primero Open Tour Auto Edition houses the legendary El Primero 4061 automatic chronograph calibre that beats at 36,000 vibrations per hour.

The famous 11 o’clock dial opening reveals the beating heart of this 282-part COSC chronometer-certified movement – reliably driving central hours and minutes hands, chronograph and tachymeter functions, as well as a tenth-of-a-second display, while ensuring a 50-hour power reserve.

https://masterhorologer.com/2017/05/18/zenith-chronomaster-el-primero-open-tour-auto-edition-brushed-stainless-steel-case-slate-grey-velvet-dial-el-primero-4061-automatic-chronograph/
The Zenith Chronomaster El Primero Open Tour Auto Edition has a 42 mm-diameter brushed steel case, topped by a slender polished bezel framing the slate grey dial decked out in vertical blue-white-red vertical stripes – a reference to the tricolour French rally banner picked up in several design details.

The distinctive dial ensures optimal legibility in any lighting, while the exhibition case-back bearing the engraved race logo reveals an oscillating weight adorned with a “Côtes de Genève” motif.

Technical details

Model: Zenith Chronomaster El Primero Open Tour Auto Edition
Ref. 03.2046.4061/91.C769

Edition
Limited edition of 500 pieces

Movement
El Primero 4061, Automatic
Calibre 13¼“` (Diameter: 30 mm)
Movement thickness: 6.6 mm
Components: 282
Jewels: 31
Frequency: 36,000 VpH (5 Hz)
Power-reserve: min. 50 hours
Finishes: Oscillating weight with “Côtes de Genève” motif

Functions
Hours and minutes in the centre
Small seconds at 9 o’clock
Chronograph:
– Central chronograph hand
– 12-hour counter at 6 o’clock
– 30-minute counter at 3 o’clock
Tachymetric scale

Case
Material: Brushed stainless steel
Diameter: 42 mm
Diameter opening: 37.1 mm
Thickness: 14.05 mm
Crystal: Domed sapphire crystal with anti-reflective treatment on both sides
Case-back: Transparent sapphire crystal bearing the Tour Auto logo; Brushed Steel
Water-resistance: 10 ATM

Dial
Slate grey velvet-finish
Hour-markers: Rhodium-plated, faceted and coated with SuperLuminova SLN C1
Hands: Rhodium-plated, faceted and coated with SuperLuminova SLN C1

Straps
Bracelet reference: 27.00.2118.769
Designation: Slate grey strap adorned with blue, white and red lines
Abbreviation: FB
Buckle 27.03.0208.940
Stainless steel triple folding clasp