El Primero1
zenith
El Primero Chronomaster Open Power Reserve
51.2080.4021/01.C494
| Brand : | Zenith |
| Collection : | El Primero |
| Model : | El Primero Chronomaster Open Power Reserve |
| Reference : | 51.2080.4021/01.C494 |
| Complement : | Steel - Pink Gold Bezel - Alligator Strap |
| On sale : | 2011 |
PDF INDEX CARD
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Brand : Zenith Collection : El Primero Model : El Primero Chronomaster Open Power Reserve Reference : 51.2080.4021/01.C494 Complement : Steel - Pink Gold Bezel - Alligator Strap On sale : 2011 List Price : 8 500 € Diameter : 42 mm Styles : Sporty Types : Self-winding Calibre : El Primero 4021P Calibre distinction : Côtes de Genève Circular Graining Complication : Small Seconds Power Reserve Indicator Tachymeter 30-Minute Counter Chronograph Case material : Steel Case peculiarity : Sapphire caseback Traitement antireflet Pink gold bezel Shape : Round Water-resistance : 100 meters Dial : Open Silver-Sun Display : Luminescent hands Indexes : Luminescent Baton-type Glass : Sapphire Antireflective coating Strap material : Alligator leather Strap color : Brown + More characteristics : Chronograph control center via
column wheel
Movement
El Primero 4021P. Automatic
Caliber:
13 1/4 ``` (Diameter: 30 mm)
Height: 7.85 mm
Parts: 248
Jewels: 39
Frequency:
36.000 V/h – (5 Hz)
Power reserve: over 50 hours
Regulator assembly with fine
adjustment
Central rotor on ball bearings
Automatic winding in both directions
Decoration:
Rhodium-plated platinum
“Côtes de Genève” or circular
graining and chamfering on the bridges
Strokes drawn on the hammers.
levers and conveyors
Oscillating weight:
Oscillating weight with guilloché work in a “Côtes de Genève” motif and revelation of the ZENITH star through skeleton work
Case
Sapphire glass treated with
anti-reflection on both sides
Available models
Available in steel. 18-carat two-toned or rose gold with silver or black sun-burst dial and a brown or black alligator-skin strap
DESCRIPTION
- ZENITH - OPEN POWER RESERVE EL PRIMERO CHRONOMASTER
The Chronomaster Open unites in a spectacular fashion the most rigorous watchmaking tradition with bold contemporary design. This ZENITH model uncovers the very essence of time and reveals, in the openings on its dial, the 36,000 vibrations of its movement: the legendary El Primero. The aperture invites interest as much by the magic it emanates as by the curiosity it inspires. But make no mistake: the Chronomaster Open is fi rst and foremost an example of technological prowess, a timepiece that is 100% technical and 100% passion.
The Chronomaster Open model leaves no-one indifferent. The open dial – a ZENITH creation – lets one see into the perfectly synchronized pulsations and the magic of the mechanism in what is today unanimously considered as the “best serial movement in the world” for its performance and its chronometric reliability. Its secret lies in its number of vibrations, which is 25% higher than in other movements on the market. Whereas other timepieces make 8 vibrations per second, the El Primero caliber makes 10 in the same time. Over and above the aesthetic success of this open-heart operation – the Open concept is the realization of technical prowess: to make the regulating organ visible, it has been moved to 10 o’clock, on the edge of the movement.
The great watchmaking tradition
Everything here evokes the great tradition of watchmaking: a column-wheel chronograph mechanism; a power reserve indicator; a rhodium-plated plate, circular-graining and chamfered bridges; strokes drawn on the hammers, levers and conveyors; oscillating weight with “Côtes de Genève” guilloché work; revelation of the ZENITH star through skeleton work and tachometric scale on the fl anges that harks back to the chronographs used in the fi rst automobile races. One can only admire the attention to detail.
Aesthetic daring
The Chronomaster Open displays an avant-garde design with highly fi nished features. This aspect is important in the choice of a watch, one of the only pieces of jewelry worn by men, an accessory that identifi es and highlights his personality. ZENITH communicates the image of a highly technical brand that is intended for connoisseurs of high-precision watchmaking.
Variations
Using the design codes of the past to interpret contemporary models, the Chronomaster Open is based on a century and a half of watchmaking expertise. The Open model exists in four different versions: a silver or black sun-burst dial in a steel case or silver sun-burst dial in an 18-carat rose gold case or in a rose gold and steel case. The markers and the three hands for the hours, minutes and small seconds are facetted, rhodium-plated, and hand-set. The central hand of the chronograph, the hand for the 30-minute counter and for the power reserve have a blued fi nish. The curve of the hands that decorate the dial is executed with precise handwork. The Chronomaster Open model belongs to ZENITH’S “Iconic” family.
- ZENITH - OPEN POWER RESERVE EL PRIMERO CHRONOMASTER
The Chronomaster Open unites in a spectacular fashion the most rigorous watchmaking tradition with bold contemporary design. This ZENITH model uncovers the very essence of time and reveals, in the openings on its dial, the 36,000 vibrations of its movement: the legendary El Primero. The aperture invites interest as much by the magic it emanates as by the curiosity it inspires. But make no mistake: the Chronomaster Open is fi rst and foremost an example of technological prowess, a timepiece that is 100% technical and 100% passion.
The Chronomaster Open model leaves no-one indifferent. The open dial – a ZENITH creation – lets one see into the perfectly synchronized pulsations and the magic of the mechanism in what is today unanimously considered as the “best serial movement in the world” for its performance and its chronometric reliability. Its secret lies in its number of vibrations, which is 25% higher than in other movements on the market. Whereas other timepieces make 8 vibrations per second, the El Primero caliber makes 10 in the same time. Over and above the aesthetic success of this open-heart operation – the Open concept is the realization of technical prowess: to make the regulating organ visible, it has been moved to 10 o’clock, on the edge of the movement.
The great watchmaking tradition
Everything here evokes the great tradition of watchmaking: a column-wheel chronograph mechanism; a power reserve indicator; a rhodium-plated plate, circular-graining and chamfered bridges; strokes drawn on the hammers, levers and conveyors; oscillating weight with “Côtes de Genève” guilloché work; revelation of the ZENITH star through skeleton work and tachometric scale on the fl anges that harks back to the chronographs used in the fi rst automobile races. One can only admire the attention to detail.
Aesthetic daring
The Chronomaster Open displays an avant-garde design with highly fi nished features. This aspect is important in the choice of a watch, one of the only pieces of jewelry worn by men, an accessory that identifi es and highlights his personality. ZENITH communicates the image of a highly technical brand that is intended for connoisseurs of high-precision watchmaking.
Variations
Using the design codes of the past to interpret contemporary models, the Chronomaster Open is based on a century and a half of watchmaking expertise. The Open model exists in four different versions: a silver or black sun-burst dial in a steel case or silver sun-burst dial in an 18-carat rose gold case or in a rose gold and steel case. The markers and the three hands for the hours, minutes and small seconds are facetted, rhodium-plated, and hand-set. The central hand of the chronograph, the hand for the 30-minute counter and for the power reserve have a blued fi nish. The curve of the hands that decorate the dial is executed with precise handwork. The Chronomaster Open model belongs to ZENITH’S “Iconic” family.
-
Brand : Zenith Collection : El Primero Model : El Primero Chronomaster Open Power Reserve Reference : 51.2080.4021/01.C494 Complement : Steel - Pink Gold Bezel - Alligator Strap On sale : 2011 List Price : 8 500 € Diameter : 42 mm Styles : Sporty Types : Self-winding Calibre : El Primero 4021P Calibre distinction : Côtes de Genève Circular Graining Complication : Small Seconds Power Reserve Indicator Tachymeter 30-Minute Counter Chronograph Case material : Steel Case peculiarity : Sapphire caseback Traitement antireflet Pink gold bezel Shape : Round Water-resistance : 100 meters Dial : Open Silver-Sun Display : Luminescent hands Indexes : Luminescent Baton-type Glass : Sapphire Antireflective coating Strap material : Alligator leather Strap color : Brown More characteristics : Chronograph control center via
column wheel
Movement
El Primero 4021P. Automatic
Caliber:
13 1/4 ``` (Diameter: 30 mm)
Height: 7.85 mm
Parts: 248
Jewels: 39
Frequency:
36.000 V/h – (5 Hz)
Power reserve: over 50 hours
Regulator assembly with fine
adjustment
Central rotor on ball bearings
Automatic winding in both directions
Decoration:
Rhodium-plated platinum
“Côtes de Genève” or circular
graining and chamfering on the bridges
Strokes drawn on the hammers.
levers and conveyors
Oscillating weight:
Oscillating weight with guilloché work in a “Côtes de Genève” motif and revelation of the ZENITH star through skeleton work
Case
Sapphire glass treated with
anti-reflection on both sides
Available models
Available in steel. 18-carat two-toned or rose gold with silver or black sun-burst dial and a brown or black alligator-skin strap