Omega Caliber 5619 5619a

Omega Caliber 5619

Omega Caliber 5619 5619a

Manufacturer Omega
Caliber Number 5619, 5619A
In-House? Unknown
Dimensions Unknown (please add to the comments)
Battery Cell Number CR2320
Battery Life 24 months
Hand Sizes Unknown (please add to the comments)
Jewels 9
Functions Hours, minutes, central seconds, date, day, month, year, perpetual calendar
Country of Manufacture Switzerland
Known Models
Omega Speedmaster Skywalker X-33

The Omega caliber 5619 multi-function quartz movement was introduced with the launch of the Skywalker X-33 ani-digi Speedmaster (Ref: 318.

Omega officially lists this caliber number as 5619 on their site, but the actual number on the movement is 5619A. There is also another number that can be seen on the movement: AT05H2.

Official description from Omega:

“Highly precise thermo-compensated multi-functional quartz movement with special functions developed and tested and qualified by the European Space Agency (ESA). It powers the Omega Speedmaster Skywalker X-33 whose analog hands and LCD windows display, among other values: three different time zones, chronograph, timer, MET (Mission Elapsed Time), PET (Phase Elapsed Time), three alarms and perpetual calendar.”


  • Alarm
  • Chronograph: countdown and flyback
  • Multiple time zones
  • 24 hours
  • Perpetual calendar until year 2100
  • Backlight
  • Stand-by mode
  • Low battery indicator

Watches with this movement have four pushers and a crown that also acts as a button when pushed in.


Although quartz watches are known for their superior accuracy when compared to mechanical movements, the biggest potential challenge to maintaining accuracy is a change in temperature. High accuracy thermocompensated quartz movements are equipped with technology that ensures stable timekeeping despite fluctuation in temps.


While we do not have exact claims from Omega. Thermocompensated movements are known to be accurate between +/-5 to +/-25 seconds per year. For a quartz movement to pass COSC standards, it must have a daily average rate of +/-25.55 seconds per year. The caliber 5619 is a COSC certified movement.

Developed for Space

The caliber 5619 movement was developed under a European Space Agency patent license based on an invention by ESA astronaut Jean-François Clervoy. The patent in which is owned by the ESA, is one of 135 inventions and is available for commercial use by non-space related industries.

More Information

The photos are of a caliber 5619 in a Skywalker X33 Solar Impulse watch. Below is the cover that goes between the movement and the caseback.

Omega Caliber 5619 Cover

Watches with this Caliber

Please share your experiences and thoughts about the Omega caliber 5619 in the comments section below…

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