Chronoswiss

Black

Reference Number :

CH-3715M-BKBK

Series : SkelTec

Retail: $24,420

(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 TakeThe SkelTec Pitch Black isn't just telling time; it's performing mechanical theatre right on your wrist. Forget subtle – this 45mm beast commands attention with its intricate, multi-layered skeletonized heart, the C.304 caliber, beating proudly on display. Chronoswiss went full stealth mode with the materials, using a matt black DLC coating over stainless steel that absorbs light, yet the clever mix of sandblasted and knurled textures on the case and bezel creates a landscape of shadows and highlights. It’s like peering into the engine room of a spaceship, all black chrome and purposeful mechanics, from the exposed balance wheel ticking away at 4Hz to the visible spring barrel. Even the hands are skeletal, tipped with Super-LumiNova like targeting lasers in the dark. Strapped on with a tough calfskin and textile combo, it feels ready for anything, despite its intricate looks. It’s a bold statement piece that celebrates the engine as much as the exterior design, a proper conversation starter for anyone who appreciates hardcore horological engineering.

DescriptionManufacturing specifications for the reference CH-3715M-BKBK timepiece detail a case constructed from stainless steel, subjected to a diamond-like carbon (DLC) coating process resulting in a matt black appearance. Comprising 51 individual components, the case architecture achieves a diameter measurement of 45 millimeters and a total height profile of 15.15 millimeters. The overall external surfaces receive a sand-blasted matt finish, contributing to its non-reflective properties. Securing the movement is a screw-down case back, incorporating an aperture fitted with sapphire crystal for visual inspection of the caliber. The bezel component features a combination of sand-blasted matte surfacing and knurled texturing. Protecting the dial side is a curved sapphire crystal, enhanced with double anti-reflective coatings applied to minimize glare and optimize legibility under various lighting conditions. Water resistance is rated to 5 bar, offering protection against incidental water contact. Lug spacing accommodates a strap width of 22 millimeters.

Powering the time display functions is the Manufacture caliber C.304, a mechanical movement requiring manual winding. Operational frequency is regulated at 4 Hz, equivalent to 28,800 alternations per hour (A/h), supported by a structure incorporating 21 jewels to reduce friction at critical points. Upon full winding, the mainspring provides an approximate power reserve of 48 hours. The dial architecture is fully skeletonized, treated with a black chrome coating and finished with a matte texture, revealing the intricate mechanics beneath. Time indication is restricted to central hours and minutes. The hands are correspondingly skeletonized in design, coated with lacquer, and feature inlaid applications of white Super-LumiNova for enhanced visibility in low-light environments. Special technical characteristics include the extensively skeletonized nature of the manufacture movement itself, an open or exposed balance wheel design, and a similarly skeletonized spring barrel, further emphasizing the watch's mechanical transparency. A strap combining calf skin and textile materials is affixed, secured by a folding clasp mechanism.

GenderMen

SignaturesChronoswiss

Country of OriginSwitzerland

Case Size45 mm

MovementHandwound

CaliberC.304

FunctionsHours, Minutes

Power Reserve48 Hours

Case MaterialsStainless Steel, DLC

Bezel MaterialsStainless Steel, DLC

Lug MaterialsStainless Steel, DLC

Case BackSapphire Crystal