2012/04/11 - Chronoswiss the Sirius Balance Chronograph

The Balance of Time

The First Chronoswiss with Double Retrograde Displays 

The Balance model celebrates a first for Chronoswiss while perfectly uniting demanding technology and elegant design: for the first time in its history, Chronoswiss introduces a watch with two retrograde displays. The lavishly guilloché dial of the new automatic chronograph bursts with various displays, effortlessly exuding equilibrium and creating a fascinating and perfectly balanced aesthetic.

Inspired design: with some imagination, the elegant dial of the Balance is reminiscent of a butterfly. Two crescent-shaped sectors on the right and left sides take flight with the idea. One of these “wings of time” is always in motion, for the left half of the dial is where the seconds display is located, exhibited on a scale from 0 to 30. Twice a minute the second hand flies back to the start in the blink of an eye to begin a new journey toward 30 all over again. The hand within the “wing” across the way only flies back to its start once a month, since the right side of the dial shows the date in retrograde manner. Automatic Caliber C.831 is in charge of the beating of these wings, making its industry debut in the Balance.

Aesthetic perfection: on the dial crafted in solid Sterling silver Chronoswiss shows its usual love of detail and filigreed elegance. An homage to the brand’s traditionally designed line, its “face” shows traces of some of the company’s most classic models such as Kairos, Lunar, and Delphis—in perfect balance, of course. The “winged” surfaces are embellished with high-quality guilloché that resembles waves; these are lavishly framed by “threads” of Breguet-style guilloché (also known as piqué relevé). In the center of the minute and hour counters, there is a fine guilloché in honeycomb design, while a radial satin finish decorates the outer area of the dial. It is this contrasting interplay of various structures that gives the Balance model its special charm.

Chronoswiss is the first brand to launch a watch using this fascinating caliber, which includes a double retrograde display. This mechanical treasure is likely to give connoisseurs of mechanical art the “flutters.”

Technical Specifications

  • Balance 
Ref. Number
  • CH 7541 B R red gold 
  • CH 7543 B stainless steel 
  • Chronograph with retrograde seconds and retrograde date 
  • Sweep hours, minutes, retrograde seconds, retrograde date, sweep chronograph seconds, 30-minute counter, 12-hour counter 
  • Solid 38-part case, polished; 
  • Screw-down, polished and fully threaded bezel, anti-reflective coating on one side of the sapphire crystal, screw-down, polished and fully threaded case back, anti-reflective coating on one side of the sapphire crystal, onion-style crown (solid in material of case), screwed spring bars with patented Autobloc system, water-resistant to 3 atm/30 m 
Case variations
  • Solid 18-karat red gold (5N) 
  • Stainless steel 
  • Ø 42 mm, height 14.75 mm 
  • C.831 
  • Ø 30 mm (13 1/4´´´) 
  • 7.90 mm 
  • 39 jewels 
  • Glucydur, three-legged 
Balance spring
  • Nivarox I 
Fine adjustment
  • Via excenter cam 
Shock protection 
  • Incabloc 
  • 4 Hertz, 28,800 vph (semi-oscillations) 
Power reserve
  • Approx. 46 hours 
  • Skeletonized rotor with côtes de Genève, ball bearings, polished pallet lever, escape wheel, and screws, bridges with côtes de Genève and perlage, perlage on plates 
  • Solid Sterling silver (925), guilloché 
  • Blued steel hands in Breguet Losange shape 
  • Louisiana crocodile leather 
  • Buckle or folding clasp