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Zenith ChronoMaster Collection, Edition 2009

Timeless in style, this collection, with its subtle Italianate overtones, threads its way between Tradition and Modernity. This icon of the ZENITH Manufacture, inspired by the neoclassical, is a celebration of Time. From the double gaudron case to the authentic barleycorn guilloche, it has a look that harks back to the great watchmaking tradition. Its boldly innovative design allows the 36,000 vibrations per hour of the mythical El Primero chronograph to be glimpsed at the heart of the movement.

This collection, timeless yet strikingly modern, which now joins the Haute Horlogerie universe along with the ChronoMaster Open Grande Date Moon & Sunphase, has been enriched with new complications over the years, thus writing new chapters in the history of the ZENITH brand.

Zenith ChronoMaster Open
The ChronoMaster Open matches the watchmaking tradition with modernity, ZENITH uncovers the heart of Time and reveals the 36,000 vibrations per hour of the legendary El Primero chronograph through the opening in the dial. This will be the first Open El Primero 4021 calibre. The impertinence of the collection is creating a stir in the watchmaking world. The applique numerals, the double gaudron of the case, the black alligator strap are the signature features of a new elegance.

The range is available in two sizes (45 mm and 40 mm), in rose gold with a silver guilloche or stainless steel dial or alternatively in stainless steel with a choice of dial in black or silver, with a smooth or guilloche finish. A revolutionary technology allied to a daring design – this collection is reasserting its distinguished and ambitious style.

Zenith ChronoMaster Open Grande Date
In 2008, this collection was endowed with a new fully-mastered complication, the ChronoMaster Open Grande Date. This innovative timepiece stands out because of its design as well as its sophisticated technical features. The three patented disks for the Grande Date at 2 o’clock can be seen as a result of the outstanding transparency of the dial. This translucent and unbreakable material – the result of space research – lightens the perspective, making it seem as though the numerals are floating.

The opening on the dial at 10 o’clock, the emblematic symbol of the range, reveals the El Primero 4039 movement composed of 331 components and 41 rubies. The appliqué Roman numerals and barleycorn guilloche dress the dial which comes in rose gold for a classical look or stainless steel for a more contemporary design.

Technical details
Movement
Open El Primero :4039, Automatic
Calibre : 13 “` (Diameter : 30.50 mm)
Height : 9.05 mm
Components : 331
Jewels : 41
Frequency : 36’000 V/h (5 Hz)
Power reserve : min. 50 hours
Finishings : 22-carat Gold or metal oscillating
weight with “Côtes de Genève” pattern

Case
Material : 18-carat Rose Gold or Stainless Steel
Diameter : 45 mm / 40 mm
Diameter opening: 35 mm / 29.9 mm
Crystal : Curved sapphire glass with antireflection treatment on both sides
Case-back : Transparent sapphire glass
Water-resistance : 30 meters

Dial
Black or Silver “soleillé” guilloché
Integrated TR90 segments over the calendar disks & the power reserve indicator
Opening at 10 o’clock revealing heart of 4039 Caliber
Indexes & Numerals : Hand-mounted applied markers, 18-carat Gold, rhodium / ruthenium
Hands : Faceted, 18-carat Rose Gold, rhodium / ruthenium (steel version)

Functions
Hours and minutes in the center
Small seconds hand at 9 o’clock
3-Disc Grande Date at 2 o’clock
Power reserve indicator from hour axis
Chronograph :
• Central seconds hand
• 30-minute counter at 3 o’clock

Strap
Handmade, black integrated alligator leather strap lined with silky Alzavel calfskin
Buckle: 18-carat Rose Gold or Stainless Steel triple folding buckle

ChronoMaster Open Grande Date Moon & Sunphase
Masterpiece of the ChronoMaster 2009 collection, its resolute classical elegance offset by modernity: the ChronoMaster Open Grande Date Moon & Sunphase will surprise. Illustrating yet again the Manufacture’s specialist ability, this unique complication of a Grande Date, Moon and Sunphase chronograph reveals a new El Primero 4047 calibre, with 332 components and 41 rubies, through the opening in the dial.

The barleycorn guilloche on the dial, the wavy guilloche on the counters and the moon disk, the delicately pearlised plate and the guilloched oscillating mass are so many precise and refined indications of authentic watchmaking know-how. In one 45 mm size, the rose gold cases show off a silver dial whilst those in stainless steel offer the choice of a black or silver dial. Aristocratic and refined, the ChronoMaster Open Grande Date Moon & Sunphase records the mechanical measurement of Time in style.

Technical details
Movement
New Open El Primero 4047, Automatic
Calibre : 13 1/2“` (Diameter : 30.50 mm)
Height : 9.05 mm
Components : 332
Jewels : 41
Frequency : 36’000 V/h (5 Hz)
Power reserve : min. 50 hours
Finishings : 22-carat Gold or metal oscillating weight with “Grain d’Orge” pattern

Case
18-carat Rose Gold or Stainless Steel
Diameter : 45 mm
Diameter opening: 35 mm
Crystal : Curved sapphire glass with antireflection treatment on both sides
Case-back : Transparent sapphire glass
Water-resistance : 30 meters

Dial
Black or Silver “Grain d’Orge” Guilloché
Integrated TR90 segments over the calendar disks. Opening at 10 o’clock revealing heart of 4047 Caliber
Indexes & Numerals : Hand-mounted applied markers, 18-carat Gold or rhodium / ruthenium
Hands : Faceted, 18-carat Rose Gold or rhodium / ruthenium.

Functions
Hours and minutes in the center
Small seconds hand at 9 o’clock
3-Disc Grande Date at 2 o’clock
Moon & Sunphase indicator at 6 o’clock
-Chronograph :
• Central seconds hand
• 30-minute counter at 3 o’clock

Strap
Handmade, Black Crocodile leather strap lined with silky Alzavel calfskin
Buckle: 18-carat Rose Gold or Stainless Steel triple folding buckle

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