Chronoswiss

Regulator

Reference Number :

CH-6721R

Series : Heritage

Retail: $19,910

(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 your typical time-teller; the Grand Regulator CH-6721R is a statement piece dipped in luxurious 18k red gold. It's got that old-school cool, like a vintage scientific instrument, thanks to the regulator dial layout. The big central minute hand commands attention, while the hours and seconds get their own little stages up top and down below. It’s not just about looks, though. The solid sterling silver dial isn't just stamped out; it's got that intricate guilloche pattern, showing off some serious craft. Inside, the hand-wound C. 673 ticker keeps things precise with its steady 18,000 A/h beat. Even the details, like the thermally blued hands shaped just so and the knurled bezel, scream quality. It’s substantial at 44mm but not overly thick, sitting nicely on the wrist with its gator-embossed calfskin strap. It's a conversation starter, a nod to horological history wrapped in warm gold, perfect for someone who appreciates precision with a touch of classic elegance.

DescriptionThe watch, designated as reference CH-6721R within the Grand Regulator collection, is constructed from 18-karat red gold, encompassing a total of 21 individual components. Its case possesses a diameter measuring 44 millimeters and a vertical height of 10.60 millimeters. The finish applied to the case is a combination of polished and satin-finished surfaces. A key structural element is the polished screw-down bezel, notable for its characteristic side knurling and full threading, securing the front crystal. Complementing this, the case back is also a screw-down type, featuring a satin finish and incorporating a sapphire crystal exhibition window, allowing visual inspection of the internal mechanism. The lug spacing, determining the compatible band width, is specified at 22 millimeters. Water resistance is rated at 3 bar, equivalent to a depth of 30 meters, offering protection against incidental water contact.

Powering the timekeeping functions is the manual-winding Caliber C. 673 movement. This mechanism operates at a frequency of 2.5 Hz, which corresponds to 18,000 alternations per hour (A/h). When fully wound, the movement provides a power reserve of approximately 46 hours. The internal architecture of the caliber includes 17 jewels to minimize friction at critical points. The dial itself is fabricated from solid sterling silver (specifically, 925 silver) and is distinguished by its guilloche pattern, a decorative engraving technique. Time indication follows the regulator format: a large central hand displays the minutes, while separate sub-dials show the hours (positioned at 12 o'clock) and the seconds (positioned at 6 o'clock). The hands are executed in the "Poire Losange" shape, featuring thermal bluing, diamond cutting, and a distinct curvature; the minute hand undergoes a manual bending process. Securing the watch to the wrist is a calfskin strap detailed with alligator embossing, fastened by either a traditional pin buckle or an optional folding clasp.

GenderMen

SignaturesChronoswiss

Country of OriginSwitzerland

Case Size44 mm

MovementHandwound

CaliberC. 673

FunctionsHours, Minutes, Seconds, Regulator

Power Reserve46 Hours

Case MaterialsRed Gold

Bezel MaterialsRed Gold

Lug MaterialsRed Gold

Case BackSapphire Crystal