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Caliber 9RA5 features several innovations. Two "Dual Side Barrels", which extend the power reserve of the movement. The caliber features a date change mechanism which reduces the time required to change dates by half compared to conventional mechanisms.

The new Limited Edition 60th Anniversary Caliber 9RA5 2020 Spring Drive with new baseplate, thermos compensator and new caliber 9RA5 powered by the new 60th Anniversary Limited Edition.

The integrated circuit that controls the accuracy of Spring Drive, the quartz oscillator and the wiring are now housed in a new vacuum-sealed housing. Hiraya says, "During the development process we faced a challenge." "Incorporating (the movement's) temperature-correction function into the vacuum package required a separate power source to activate the feature, and the consumption current had to be kept at 45nA – the same as the consumption current for a conventional integrated chip. It took many trials and errors to find the best mechanism under these strict restrictions.omega replica watches

Hiraya's team was also given the task of slimming down a movement. Slimmer movements make for thinner watches, as the center of gravity is moved closer to the wrist. This allows for a more comfortable timepiece. The 9RA5 movement is not compromised by its thinner design.

The team was inspired by nature when designing the first edition of the Caliber 9RA5 watch. The team chose to use a winter theme and used frost-covered trees, a starry night sky,Patek Philippe Replica and ice crystals on the movement surfaces.

"If we design components that are both functional and beautiful, then they will be easier for us to manufacture. This will in turn lead to higher accuracy." Hiraya explains that this is a lesson that we have learned from our forefathers. The movements should "always be accurate, not break and be beautiful."

Michael Senning