Chronoswiss Sirius Flying Grand Regulator

Angus Davies gets hands-on with the Chronoswiss Sirius Flying Grand Regulator

This detailed review of the Chronoswiss Sirius Flying Grand Regulator includes live images, specification details and pricing.

Chronoswiss Sirius Flying Grand Regulator

This year Chronoswiss has been prolific, creating numerous new models including several regulator timepieces. The Sirius Flying Grand Regulator is a new watch for 2017 and it looks devilishly handsome with its blue guilloché dial.

Porsche makes SUVs but will forever be associated with making sports cars, in particular the 911. Likewise, Chronoswiss produces a range of timepieces but is synonymous with the creation of regulators.

I was provided with the opportunity to acquaint myself with the Sirius Flying Grand Regulator and learn more about its various attributes and horological nuances.

The dial

The dial construction is incredibly complex and represents the antithesis of expedience. The central area of the dial sits low within the case and is adorned with a guilloché pattern.

Chronoswiss Sirius Flying Grand Regulator

Four, highly polished mounts look resplendent and bridge the gap between the central dial area and the minute track which sits on high.

Ultimately, positioned above everything is an hour display featuring Roman numerals and a small seconds display at 6 o’clock.

The manipulation of depths is spectacular and proves beguiling. At the fulcrum of the dial is a small minute display on a central miniature scale. This particular detail seems superfluous, adding little to the dial vista, but this minor gripe does little to mar my overall adoration of the dialscape presented.

The silver-hued Poire Stuart minutes hand is curvaceous and imparts meaning with a wonderful dose of grace and style. At noon, a further silver-coloured hand in miniature form proclaims the hours. Finally, a red small seconds hand adds a cheery flourish to the dial ensemble.

Chronoswiss has delivered a highly legible, elegant dial which enunciates time with grace and perfect tone. 

The case

The stainless steel case measures a deceptive 44mm in diameter. Quite simply it appears much larger when worn owing to the elongated lugs. The bezel is highly polished, while all other surfaces are satin brushed.

Chronoswiss Sirius Flying Grand Regulator

An aspect I particularly like about the Sirius Flying Grand Regulator is the knurled detail encircling the bezel and the case-back. This aesthetic detail coaxes the wearer to fondle the knurled edge with an inquisitive forefinger.

The onion shaped crown is both eye-catching and very practical, facilitating ease of adjustment with its bulbous form. Rest assured, despite its large scale and spherical profile I did not suffer any chafing of my arm.

The lugs are long which may prove troublesome for small wrists, however, no such issues reared their head while the watch was under my stewardship.

A large format sapphire crystal graces the caseback, providing unhindered views of the beautifully appointed movement.

The movement

The Chronoswiss manufacture caliber C.678 is a hand-wound movement incorporating 17 jewels. The balance oscillates with a frequency of 18,000 VpH (2.5Hz) and the movement has a power reserve of 40 hours.

Chronoswiss Sirius Flying Grand Regulator

The movement is rhodium-plated and features petit perlage on the mainplate. The architecture of the movement provides wonderful views of the balance and the gear train. Atop of the balance cock is a swan-neck regulator.

Thermally blued screws abound and the bridges are adorned with circular Côtes de Genève. The ratchet wheel features solarisation and the overall finishing is to a high standard.

Closing remarks

Chronoswiss has become expert in the production of regulator watches and this particular model does nothing to diminish this reputation.

The dial is fascinating with an array of textures and levels presented. However, at all times the determination of hours, minutes and seconds proves simple and nothing detracts from this. 

While the case measures 44mm in diameter, the elongated lugs may cause the watch to overwhelm diminutive wrists. Nevertheless, I found the watch highly comfortable and its scale did not present any problems to me personally.

The movement is beautiful with lovely details imparted to its form. The quality of the execution is particularly impressive considering the modest asking price of the watch.

As you have probably discerned by now, I like the Sirius Flying Grand Regulator very much. It blends an array of qualities, does many things well and has few faults to mar enjoyment. Indeed, this is a perfect illustration of why some companies do well when they stick to their core competence.

Further reading



Technical specifications

  • Model: Chronoswiss Sirius Flying Grand Regulator CH-6723-BLBL
  • Case: Stainless steel; diameter 44mm; water resistant to 3 bar (30 metres); sapphire crystal to front and caseback.
  • Functions: Hours; minutes; small seconds.
  • Movement: Caliber C.678; Hand-wound movement; frequency 18,000 VpH (2.5Hz); 17 jewels; power reserve 40 hours.
  • Strap: Blue Louisiana alligator leather strap with steel folding clasp.
  • Price: CHF 7,500 (RRP as at 19.7.2017)

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