Konstantin Chaykin - SC02C
Konstantin Chaykin - SC02C
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Description
Description
The Konstantin Chaykin SC02C is a limited-edition mechanical chronograph born from the Manufacture’s research program with Roscosmos, initiated in 2018 to develop a mechanical watch capable of operating during extravehicular activity.
Experimental prototypes developed through the program have participated in four spacewalks, including a six-hour mission outside the space station in May 2026. The SC02C translates the technical solutions developed and tested through this research into a watch adapted for everyday wear.
Limited to just 28 pieces, the SC02C combines a purpose-built 44 mm stainless steel case, extensive protection against extreme environmental conditions, and the hand-wound K.20-5 chronograph caliber.
The Concept
The Concept
The SC02C was conceived not simply as a space-inspired watch, but as an instrument developed from actual research conducted in orbit.
Its architecture incorporates feedback from cosmonauts and solutions created specifically for operation under vacuum, g-loads, vibration, magnetic fields and extreme temperature variations. The case is engineered to remain operational in high vacuum down to 1 × 10⁻⁶ atm, while its sapphire crystal uses a reverse dovetail mounting designed to prevent displacement under pressure changes and acceleration.
The rotating 12-hour bezel provides an independent mechanical method of measuring elapsed time during a spacewalk. By aligning the “12” marker with the hour hand, the wearer can track elapsed hours directly from the bezel without relying on the chronograph.
The research continues on Earth with the 28 owners of the SC02C, who can wear the watch under a wide range of conditions and provide performance feedback to the Manufacture.
The Features
The Features
Movement: Konstantin Chaykin K.20-5
Type: Hand-wound mechanical chronograph
Base Caliber: Modified Poljot 3133
Manufacture Components: 60 components produced by Konstantin Chaykin
Escapement: Lever escapement
Frequency: 21,600 vph
Jewels: 25
Power Reserve: 45 hours
Rate Accuracy: −15/+15 seconds per day
Regulation: Balance with micrometric adjustment weights
Dial: Deep black with three counters
Hour Markers: Applied, with luminous coating
Hands: Large polished hands with luminous coating
Hour Hand: Red launch-vehicle-inspired tip
Straps: Two black textile straps, standard length and extended length for wear over a spacesuit
The Functions
The Functions
Hours and minutes
Small seconds
Central chronograph seconds
30-minute chronograph counter
12-hour chronograph counter
Hacking seconds
Additional elapsed-time measurement via rotating 12-hour bezel
DESCRIPTION
The Konstantin Chaykin SC02C is a limited-edition mechanical chronograph born from the Manufacture’s research program with Roscosmos, initiated in 2018 to develop a mechanical watch capable of operating during extravehicular activity.
Experimental prototypes developed through the program have participated in four spacewalks, including a six-hour mission outside the space station in May 2026. The SC02C translates the technical solutions developed and tested through this research into a watch adapted for everyday wear.
Limited to just 28 pieces, the SC02C combines a purpose-built 44 mm stainless steel case, extensive protection against extreme environmental conditions, and the hand-wound K.20-5 chronograph caliber.
CONCEPT
The SC02C was conceived not simply as a space-inspired watch, but as an instrument developed from actual research conducted in orbit.
Its architecture incorporates feedback from cosmonauts and solutions created specifically for operation under vacuum, g-loads, vibration, magnetic fields and extreme temperature variations. The case is engineered to remain operational in high vacuum down to 1 × 10⁻⁶ atm, while its sapphire crystal uses a reverse dovetail mounting designed to prevent displacement under pressure changes and acceleration.
The rotating 12-hour bezel provides an independent mechanical method of measuring elapsed time during a spacewalk. By aligning the “12” marker with the hour hand, the wearer can track elapsed hours directly from the bezel without relying on the chronograph.
The research continues on Earth with the 28 owners of the SC02C, who can wear the watch under a wide range of conditions and provide performance feedback to the Manufacture.
SPECIFICATIONS
Case: Stainless steel
Diameter: 44 mm
Height: 14.5 mm
Bezel Diameter: 45.1 mm
Crystal: Sapphire crystal with reverse dovetail mounting system
Water Resistance: 10 ATM
Vacuum Resistance: Designed for operation down to 1 × 10⁻⁶ atm
Antimagnetic Protection: Up to 4,800 A/m
Pushers: Two flat polished chronograph pushers
Crown: Large-format crown
Bezel: Unidirectional rotating 12-hour bezel with luminous elements
Movement: Konstantin Chaykin K.20-5
Type: Hand-wound mechanical chronograph
Base Caliber: Modified Poljot 3133
Manufacture Components: 60 components produced by Konstantin Chaykin
Escapement: Lever escapement
Frequency: 21,600 vph
Jewels: 25
Power Reserve: 45 hours
FUNCTIONS
- Hours and minutes
- Small seconds
- Central chronograph seconds
- 30-minute chronograph counter
- 12-hour chronograph counter
- Hacking seconds
- Additional elapsed-time measurement via rotating 12-hour bezel