Chronoswiss

Chronograph Day Date

Reference Number :

CH-7543K

Series : Heritage

Retail: $8,140

(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 TakeOkay, let's talk about the Chronoswiss CH-7543K. This isn't just some time-teller; it's a little machine with soul. Right away, that solid sterling silver dial grabs you, doesn't it? That intricate guilloche pattern is pure old-school class, shimmering like mad under the light. Then you notice the hands – those thermally blued Breguet beauties, diamond-cut and perfectly curved, dancing over the subdials. It’s got the full chronograph suite – seconds, 30-minute, 12-hour counters – plus the ever-practical day and date tucked neatly at 3 o’clock. Packed inside that polished and satin-finished 41mm steel case is the automatic C.771, humming away reliably. It’s got that classic Chronoswiss vibe: knurled bezel, substantial feel, but refined enough for almost anywhere. It feels like a nod to watchmaking heritage but totally ready for today. Slap it on that alligator-embossed calfskin strap, and you've got a piece that’s both a conversation starter and a dependable daily driver.

DescriptionThe timepiece identified by reference number CH-7543K utilizes a case fabricated from stainless steel, comprising a total of 38 individual components. Dimensional specifications dictate a case diameter of 41 millimeters and a height measuring 15.45 millimeters. The finishing applied to the case incorporates both polished and satin-finished surfaces, providing visual contrast. A key element of the case design is the polished screw-down bezel, which features characteristic side knurling and a full thread mechanism. Ensuring integrity and allowing observation of the internal mechanism, the case back is a screw-down type executed with a satin finish and fitted with a sapphire crystal aperture. Water resistance is rated at 3 bar, equivalent to a depth of 30 meters, rendering the watch suitable for incidental contact with water but not for submersion or swimming. The inter-lug width accommodates a strap measuring 21 millimeters.

Powering the CH-7543K is the self-winding Caliber C.771 movement. This automatic mechanical caliber operates at a frequency of 4 Hz, translating to 28,800 alternations per hour (A/h), ensuring precise timekeeping. It incorporates 25 jewels to minimize friction at critical points within the gear train and escapement. When fully wound, the movement provides a power reserve of approximately 46 hours. The dial itself is crafted from solid sterling silver (specifically, 925 silver) and features an elaborate guilloche pattern, a signature decorative technique. Time indication and chronograph functions are displayed via central hours and minutes, a small seconds subdial, a central chronograph seconds hand, a 30-minute counter, and a 12-hour counter. Additionally, a day and date complication is presented through an aperture located at the 3 o'clock position. The hands follow the "Breguet Losange" shape; they are thermally blued for color and corrosion resistance, possess a diamond cut for sharpness, and are curved, with the minute hand specifically bent by hand to follow the dial contour. The accompanying strap is constructed from calfskin embossed with an alligator pattern, secured by either a traditional pin buckle or an optional folding clasp.

GenderMen

SignaturesChronoswiss

Country of OriginSwitzerland

Case Size41 mm

MovementAutomatic

CaliberC. 771

FunctionsChronograph, Hours, Minutes, Seconds, Date, Day

Power Reserve46 Hours

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

Case BackSapphire Crystal