Chronoswiss

Flying Regulator Blue Spark

Reference Number :

CH-8756.1-BKBL

Series : Open Gear

Retail: $13,310

(As of: 04/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Chronoswiss. If you are interested in selling this watch to us, you can contact us here.

Quick TakeForget subtle elegance; the Chronoswiss Open Gear Blue Spark is a jolt of pure mechanical energy strapped to your wrist. That Electric Blue CVD case isn't just colour, it's a statement – a vibrant housing for a fascinatingly complex heart. Peering through the crystal, you see the dance of the regulator layout, a classic complication given a modern, almost industrial twist with the exposed gear train – the "Open Gear" doing its mesmerizing work. The hand-guilloche on the lower dial level whispers tradition, while the skeletonized bridges and funnel displays shout contemporary watchmaking. It’s like seeing the intricate wiring of a futuristic device, but powered by springs and gears. The off-centre hours and small seconds add to the technical vibe, making time-telling an engaging observation rather than a mere glance. With only 50 pieces existing, wearing this isn't just telling time; it's owning a slice of kinetic art, a conversation starter that buzzes with the lifeblood of precision mechanics, all wrapped in an unforgettable shade of blue.

DescriptionThis timepiece, identified by reference number CH-8756.1-BKBL, features a case constructed from stainless steel treated with an Electric Blue Chemical Vapour Deposition (CVD) coating. The case assembly comprises 16 individual components. Dimensional parameters specify a diameter of 41 mm and a height of 13.85 mm. The case incorporates a screw-down back with a satin finish and an integrated flat sapphire crystal for viewing the movement. Water resistance is rated at 10 bar, equivalent to a depth of 100 meters. External finishing employs a combination of partly polished and partly vertical satin finishes. The bezel is a polished screw-down type, featuring a full thread design and distinctive side knurling, topped by a curved sapphire crystal with anti-reflective treatment. An onion-style crown facilitates time-setting and winding operations. Lug width for strap attachment is specified at 21 mm.

Powering the watch is the Chronoswiss Caliber C.299 automatic movement, operating at a frequency of 4 Hz, or 28,800 alternations per hour (A/h). This self-winding mechanism provides an approximate power reserve of 42 hours and incorporates 31 jewels to minimize friction. Movement finishing includes a polished pallet lever, escape wheel, and screws. The bridges and plates exhibit a colimaçon decoration, complemented by thermally blued screws. A skeletonized rotor, finished in blue with Côtes de Genève decoration and mounted on a ball bearing, ensures efficient winding. The dial presents an intricate two-level construction: the lower level showcases hand-guillochage, while the upper level secures skeletonized train wheel bridges and funnel-shaped structures for the time indications via screws. Time is displayed via an off-centre hours subdial at the 12 o'clock position, central minutes, and a small seconds display situated at 6 o'clock. This configuration highlights the "open gear" mechanism, a key feature of this limited production run of only 50 units globally. The hands are rhodium-plated "Trigono" style, featuring Super-LumiNova inserts for low-light visibility; the minute hand is carefully bent by hand to follow the dial's curvature. Attachment to the wrist is achieved via a hand-sewn textile strap made from Cordura, secured with a folding clasp.

GenderMen

SignaturesChronoswiss

Country of OriginSwitzerland

Case Size41 mm

MovementAutomatic

CaliberC.299

FunctionsHours, Minutes, Seconds, Retrograde, Regulator

Power Reserve42 Hours

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

Case BackSapphire Crystal