ZENITH New El Primero Tourbillon Chronograph 44mm

Swiss luxury watch brand ZENITH offers their new 44 mm diameter Tourbillon Chronograph, the tourbillon combined with a chronograph caliber with a calendar – another watchmaking complication – and a high frequency, a third challenge. It is the only watch on the market with such a complex mechanism, aiming to attain the most precise chronometric performance possible.

ZENITH New El Primero Tourbillon Chronograph 44mm

This tourbillon is unique in more than one way: it shows off its rotating carriage in the upper left-hand part of the dial, including a built-in calendar. This asymmetry aesthetically highlights the tourbillon’s mechanism, visible through an opening in the dial, while maintaining fine proportions and elegant lines. The date is displayed – in a patented system – by means of a disk around the circumference of the carriage.

ZENITH New El Primero Tourbillon Chronograph 44mm

The El Primero chronograph’s automatic calibre is the heart of the movement. While the high frequency assigned to this exceptional motor generates greater precision, it also demands increased power.

To protect performance, ZENITH designers have developed an in-line escapement that shifts the balance spring to the outer edge of the rotating carriage. The result is a tourbillon and a high-frequency automatic chronograph with over 50 hours of power reserve. The calibre is composed of 381 components, including 67 for the rotating carriage.

ZENITH New El Primero Tourbillon Chronograph 44mm with rose gold case

The tourbillon comes in two models: steel or rose gold, with counters at three and six o’clock. The seconds hand in the tourbillon carriage rotates with it in 60 seconds. A true mechanical masterpiece and a technical exploit, to date, the ZENITH tourbillon is the only one to beat at a high frequency, with a quarter more vibrations of its balance than other constructions.

ZENITH New El Primero Tourbillon Chronograph 44mm

Let us examine the unique characteristics of the ZENITH tourbillon. The case’s middle is formed using a double stamping process, which creates one curve at a time along the length and depth. The olivette makes it easier to grasp the crown. The magic of the calibre in movement can be seen through the Sapphire glass.

Technical details

Model: ZENITH New El Primero Tourbillon Chronograph 44mm

Special features
Automatic movement with the unique and patented Date around Tourbillon carriage
El Primero 4035 D Caliber: 381 Components, 35 jewels & 36’000 VpH


• El Primero 4035 D, Automatic
• Height: 7.55 mm
• Components: 381
• Jewels: 35
• Frequency: 36’000 VpH – (5 Hz)
• Power reserve: min. 50 hours
• Finishings: 18 carat Gold or metal oscillating weight with «Côtes de Genève» pattern.
• Caliber: 16 ½ “` (Diameter : 37 mm)

Hours and minutes in the center

Central Second hand
30-minute counter at 3 o’clock
12-hour counter at 6 o’clock

• Tourbillon:
The carriage is positioned at 11 o’clock
The carriage makes one turn per minute
The small second is on the carriage
The date is positioned around the Carriage

Case, Dial & Hands
• Material: Rose Gold or Stainless Steel
• Crystal: Box-form Sapphire glass with anti-reflection treatment on both sides
• Case-back: Transparent Sapphire glass
• Water-resistance: 10 ATM
• Dial: Black Sunray or Silver Sunray
• Hands: Rhodium Faceted with Superluminova SLN C1 or Gold plated for Rose Gold version
• Case Diameter: 44 mm
• Opening Diameter: 39 mm
• Indexes: Rhodium Faceted with Superluminova SLN C1 or Gold plated for Rose Gold version

Strap & Buckle
Alligator Leather strap lined with a Rubber protection available also on triple folding buckle

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