Chronoswiss Open Gear ReSec Chameleon Watch Review

Chronoswiss Open Gear ReSec Chameleon Watch Review

The name of Chronoswiss’ latest Open Gear ReSec watch speaks for itself with a wonderful colour-changing handmade guilloche dial shifting in hues from deep jungle green to soft turquoise. The Swiss watch manufacturer’s technical expertise in colour experimentation is proudly demonstrated yet again in the new Chronoswiss Open Gear ReSec Chameleon watch, a limited edition of only 50 pieces.

Colour means everything in the luxury watch world right now. Watch brands left, right and centre are experimenting with bold and vivid dial colours, take the new Oris ProPilot X Calibre 400, Sinn 556i and Bell & Ross BR 03 94 Multimeter watches as just a few examples from this year’s 2022 Watches & Wonders event. For Chronoswiss however, colour has always been a large part of their identity. They remain the only watch brand to specialise in colour-shifting handmade guilloche dials, a technique which was originally invented and crafted from Chronoswiss’ head of design, Maik Panziera. To achieve this stunning effect, a short-wave hand guilloche pattern is combined with high-tech nanocoating which in the case of the Chronoswiss Open Gear ReSec Chameleon watch transports you to the deepest jungles of Brazil dressed in shades of deep green and aquamarine blue.

“Being an exclusive brand, goes far beyond a strict limitation of our timepieces” says Owner and CEO Oliver Ebstein. “Exclusivity means to stretch boundaries and dare to step on pathways that have never been explored before. As a family owned company we have the freedom and luxury to try new things, things that would scare others.”

We say this about most of Chronoswiss’ releases, but again, the Chronoswiss Open Gear ReSec Chameleon Limited Edition needs to be seen in person to gain full appreciation of the dial. The shifting colours and three-dimensional regulator set-up is a sight to behold with each tilt of the wrist revealing another shade of green and turquoise. Like previous Open Gear ReSec watches before it, the dial is constructed from a total of 42 parts on two levels. The bottom level is hand guilloched while the upper section is set with skeletonised train wheel bridges and a unique funnel-like construction for the hour display. Meanwhile, the minutes is placed at the centre with a large “Trigono” shaped hand and the retrograde seconds display sits at 6 o’clock. All three hands and the cylinder shaped indexes are treated with a layer of Superluminova coating.

The case also reveals much of the same spec as previous Open Gear ReSec models including a stainless steel architecture with a height of 13.35mm and a diameter of 44mm. The case features both polished and vertically satin finishes included a polished screw down bezel with full thread and a side-knurling. There’s also double-coated anti-reflective sapphire crystal glass, a 100 metre water resistant rating and a screw down case back with a sapphire crystal insert. A defining feature of the Chronoswiss Open Gear ReSec is the large onion-shaped crown at 3 o’clock which the new Chameleon Limited Edition also showcases.

Powering the Chronoswiss Open Gear ReSec Chameleon watch is another familiar feature, the Calibre C.301 automatic winding movement. Alongside its regulator complication, it promises a frequency of 28,800 vibrations per hour, a power reserve of 42 hours and a total of 33 jewels. You can admire the intricacy of the Swiss made movement through the exhibition case back including its polished pallet lever, escape wheel and screws and perlage bridges and plates. Centre stage to the case back is also a gorgeous skeletonised CVD-coated turquoise rotor with Côtes de Genève decoration to match that of the colour-shifting dial.

As a limited edition of only 50 pieces, the Chronoswiss Open Gear ReSec Chameleon watch isn’t going to be around for long. If you’re interested, head over to the Jura Watches website here or alternatively, get in touch with the team by calling 01335 453453 or send us a message at


  • Case Size: 44mm
  • Case Material: Stainless steel
  • Bezel: Fixed, knurled
  • Glass: Sapphire crystal with double anti-reflective coating
  • Crown: Onion
  • Case Back: Screw down with sapphire crystal
  • Water Resistance: 100 metres
  • Movement: Calibre C.301 automatic winding
  • Functions: Off-centre hours, central minutes, retrograde seconds
  • Power Reserve: 42 hours
  • Jewels: 33
  • Frequency: 28,800vph
  • Dial: Colour-changing green to blue hand-guilloche with black hardware and Superluminova coated hands and indexes
  • Strap: Black Cordura textile
  • Buckle: Folding
  • RRP: £8,500
  • Limited Edition: 50 pieces

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