Astronaut Jonny Kim spotted wearing a Omega

During routine computer network maintenance aboard the International Space Station's Harmony module, NASA astronaut and Expedition 73 Flight Engineer Jonny Kim wore the Omega Seamaster Diver 300M Co-Axial Master Chronometer ref. 210.32.42.20.01.001. The sighting marks yet another appearance of Omega's flagship dive watch in the microgravity environment of low Earth orbit, where precision timekeeping and reliability remain mission-critical.

The ref. 210.32.42.20.01.001 is powered by Omega's in-house calibre 8800, a Co-Axial escapement movement with a 55-hour power reserve and Master Chronometer certification by METAS—the Swiss Federal Institute of Metrology. The 42mm stainless steel case houses a black lacquered dial featuring the signature wave pattern introduced in 1995, paired with applied baton indices and lume-filled hour markers. The unidirectional rotating bezel with 300-meter depth rating and helium escape valve underscore its professional dive-watch credentials. The steel three-link bracelet features solid end links and a fold-over safety clasp.

This reference occupies a unique position in the modern Seamaster hierarchy. As the entry point to Omega's Master Chronometer collection, the 210.32.42.20.01.001 delivers certified chronometer precision—±0 to +5 seconds per day—without the precious-metal premium of the Seamaster Platinum or the limited collectibility of special editions. Production began in 2020 following the introduction of the new in-house calibre 8800, and the reference remains in active production with consistent availability across authorised dealers.

Jonny Kim's choice reflects Omega's deep-rooted partnership with NASA and space agencies worldwide. Since 1965, Omega watches have been worn by astronauts on every crewed spaceflight, from Gemini through Apollo and the Space Shuttle era to the modern ISS program. The Seamaster Diver 300M, tested in vacuum and thermal extremes, represents the logical modern extension of that heritage.

Retail pricing sits at approximately USD 6,100 for the ref. 210.32.42.20.01.001 on bracelet. Grey-market secondary market prices typically range USD 5,200–5,800, reflecting stable demand and consistent supply. Waitlist periods at authorised dealers remain moderate to short compared to sports models from competing brands, making this reference accessible to watch enthusiasts seeking an entry-level Master Chronometer with unblemished professional credentials.