Chronoswiss

Sirius Medium

Reference Number :

CH-8921R

Series : Heritage

Retail: $14,410

(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 TakeDon't let the "Medium" tag fool you; this Sirius carries some serious weight, and not just from the hefty 18k red gold composing its compact 34mm frame. It's a statement piece that whispers rather than shouts, radiating warmth from the polished and satin-finished gold. The dial is where understated elegance truly sparkles – literally. Solid sterling silver forms the base, lacquered to perfection, but it's those 18 carefully set VVSI diamonds that catch the light, marking the hours with subtle fire. Inside, the reliable Caliber C. 281 automatic beats steadily at 4Hz, keeping the Feuille hands gliding smoothly, including that meticulously hand-bent minute hand. Even the screw-down back with its sapphire window hints at quality engineering beneath the surface. While its 30m water resistance suggests keeping it clear of the deep end, this watch isn't about aquatic adventures. It's about adding a touch of refined brilliance and mechanical substance to everyday style, secured comfortably by an alligator-embossed calfskin strap.

DescriptionManufacturing specifications for the Chronoswiss Sirius Medium, reference CH-8921R, detail a case constructed from 18-karat red gold, composed of 20 individual parts. The case exhibits a diameter dimension of 34 millimeters and a vertical height profile of 8.95 millimeters. Finishing techniques applied to the case involve a combination of polished surfaces and areas with a satin finish, creating visual contrast. A key structural element is the polished screw-down bezel, which incorporates side knurling and a full thread for secure attachment. Complementing the case is a screw-down case back, also featuring a satin finish, and integrated with a sapphire crystal for movement observation. The band interface points are designed for a strap width of 18 millimeters. Water resistance is rated at 3 bar, equivalent to a static depth of 30 meters, offering protection against incidental water exposure but not suitable for submersion activities.

Powering the timepiece is the Caliber C. 281 automatic movement. This self-winding mechanism operates at a frequency of 4 Hz, which translates to 28,800 alternations per hour (A/h), ensuring a smooth sweep of the seconds hand. The movement incorporates 21 jewels to minimize friction at critical points, enhancing longevity and operational efficiency. When fully wound, the power reserve is specified as approximately 42 hours. Time indication is achieved through central hour, minute, and second hands. Additionally, a date function is integrated, displayed via an aperture positioned at the 6 o'clock location on the dial. The dial itself is fabricated from solid sterling silver (925), treated with a lacquer finish. Enhancement includes the setting of 18 diamonds, possessing a total carat weight of 0.062 ct. These diamonds are graded with a color of Top Wesselton (TW) and a clarity of Very Very Slightly Included 1 (VVSI). Hands are designated as "Feuille" shape, gold-plated, diamond-cut for sharpness, and possess a distinct curvature, with the minute hand receiving manual bending for optimal dial clearance. The accompanying strap is calfskin, embossed to mimic alligator texture, and secured by either a pin buckle or a folding clasp mechanism.

GenderWomen

SignaturesChronoswiss

Country of OriginSwitzerland

Case Size34 mm

MovementAutomatic

CaliberC. 281

FunctionsHours, Minutes, Seconds, Date

Power Reserve42 Hours

Case MaterialsRed Gold

Bezel MaterialsRed Gold

Lug MaterialsRed Gold

Case BackSapphire Crystal