Tested SC02C, a Mechanical Chronograph by Konstantin Chaykin
Konstantin Chaykin has released the SC02C, a mechanical chronograph designed for space travel and everyday wear. The watch features specialized engineering to withstand vacuum conditions and extreme pressure, building on prototypes tested on the ISS.
Why it matters
It represents a fusion of high-end horology and aerospace-grade engineering, highlighting advancements in mechanical watch durability.
The project began in 2018 with the making of a mechanical chronograph for use outside the orbital station. Prototypes of the resulting Space Conqueror were tested aboard the ISS, also during spacewalks, with the findings used to refine the construction. The latest-generation watches accompanied cosmonauts during an over 6-hour spacewalk as recently as May 27, 2026. The SC02C has been adapted for everyday wear while retaining the solutions developed for professionals.
At 44mm in diameter and 14.5mm thick, the SC02C stainless steel case features a unidirectional bezel and is unmistakably an instrument. Two rectangular, rounded polished chronograph pushers flank a large, fluted crown. The solid, theme-engraved caseback, fixed with 10 screws, provides extra protection for the movement.
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