Chronoswiss

Grand Regulator

Reference Number :

CH-6725-GRBK

Series : Flying

Retail: $15,180

(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 TakeDive deep into the mechanical theatre of the Chronoswiss Flying Grand Regulator CH-6725-GRBK! Forget flat dials; this watch builds a whole cityscape for time on your wrist. The dark, DLC-coated steel case sets a moody stage, but the real drama unfolds beneath the sapphire crystal. Check out that multi-level dial – it's like peering into an intricate machine. The base layer shimmers with a classic guilloche, grounding the design. Then, bam! Floating funnels for hours and seconds pop up, demanding attention, while the big central minute hand sweeps across its dedicated track. It's pure regulator legibility, elevated to an art form. Powered by the hand-wound C.678 ticking away reliably inside, visible through the back, it’s a reminder of the craft involved. Limited to just 30 pieces, wearing this isn't just telling time; it's showcasing a piece of architectural micro-engineering, strapped on with ruggedly elegant hornback crocodile leather. It’s bold, technical, and unapologetically three-dimensional.

DescriptionThis timepiece, reference CH-6725-GRBK, is constructed with a case fabricated from stainless steel treated with a Diamond-Like Carbon (DLC) coating for enhanced durability and aesthetic properties. Overall case dimensions measure 44mm in diameter and 12.48mm in height. The case design incorporates both polished and vertical satin finishing elements, contributing to its visual complexity. An onion-style crown facilitates winding and time-setting operations. Securing the front is a polished, screw-down bezel featuring a full thread and distinctive side knurling, housing a curved sapphire crystal treated with an anti-reflective coating. The rear aspect employs a screw-down case back, detailed with a satin finish and fitted with a sapphire crystal window for movement observation. Water resistance is rated at 3 bar, equivalent to approximately 30 meters, rendering it suitable for incidental water contact but not submersion. The lug width measures 22 mm, accommodating the specified strap.

Powering the watch is the manually wound Caliber C.678 movement, comprising 21 individual parts. It operates at a frequency of 2.5 Hz, translating to 18,000 alternations per hour (A/H). Seventeen jewels are incorporated within the caliber to reduce friction at critical points. Finishing details on the movement include polished pallet, pallet-wheel, and screws. The main plate is rhodium-plated and exhibits circular graining (perlage), while the bridges are similarly decorated with circular graining. Fully wound, the movement provides a power reserve of approximately 46 hours. The dial architecture is notably complex, built on several levels. A guilloche pattern decorates the base layer. Positioned above this is a middle level, galvanically treated black with printed elements, serving as the foundation for the central minute scale. Floating distinctly above are funnel-like constructions housing the off-centre hour display (at 12:00) and the small seconds display (at 6:00). The top level minute display track is also galvanic black and is secured onto foundation blocks. Time indication utilizes lacquered and curved "Poire Stuart" shaped hands; the minute hand undergoes a manual bending process. This reference is part of a limited production run of only 30 units.

GenderMen

SignaturesChronoswiss

Country of OriginSwitzerland

Case Size44 mm

MovementHandwound

CaliberC.678

FunctionsHours, Minutes, Seconds, Regulator

Power Reserve46 Hours

Case MaterialsStainless Steel, DLC

Bezel MaterialsStainless Steel, DLC

Lug MaterialsStainless Steel, DLC

Case BackSapphire Crystal