The Beta 21 movement was actually the fruit of a collaborative effort, named the Centre Electronique Horloger, which got underway in 1962 and was sponsored by over 20 leading Swiss watch brands. The prototype movement debuted in 1967. In 1968, a consortium of Swiss manufacturers pooled their resources and manufacturing capabilities to mass produce the calibers. The first watches containing the Beta 21 movement arrived on the market in 1970.

The Beta 21 is an electronic caliber. The movement features a quartz crystal and interestingly, while the natural oscillation rate of the quartz crystal is 8192 Hz, Patek reduced the oscillation rate to 256 Hz by means of a proprietary frequency reducer. The seconds hand sweeps (versus the usual ticking of quartz regulated movements), and the caliber has 13 jewels. A date is provided at the 6 o’clock position.

So, this watch has history going for it. It’s also an interesting and important Patek wristwatch. Since watch collectors can’t be serious all of the time, it’s good to know that the Patek Beta 21 is also a ton of retro fun, given its oversized dimensions and beautiful condition blue dial.

The 18k white gold case is all original with dimensions of 42mm long by 43mm wide by 13mm thick. Crystal is sapphire. This is such a funky 1970s style, but it’s a Patek Philippe! It’s really great. The bracelet is original and completely unique. The integrated bracelet will fit up to a 7.25 inch wrist. This case could be described as an oval or a cushion case.

The dial is blue with date window at 3 o’clock and with applied hour markers and early, original luminous hands.

This watch is mint+ condition and running great.

Price: $40,000

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