Rolex’s First Giant Step
Why the perpetual winding mechanism is the most important Rolex advancement in mechanical timekeeping.
2 min read
When you title a blog post like this, you’re inviting a lot of arguments. There are going to be people who say Rolex’s first giant step was getting people to give up pocket watches for wrist watches. There are going to be people who say that the first giant step for Rolex came with diving watches and not with the watch mechanics.
The truth is Rolex has been at the forefront of innovation in the world of timekeeping from the very beginning and you can’t really rank the advances as much as you might want to. For me, the big first advancement is also the advancement that serves as a sort of motto concept for the company.
Perpetual.
Rolex’s most important first giant step was, in my mind, the self-winding mechanism called the Perpetual rotor, which was patented in 1931. The simplistic design, just a semi-circular plate that moves freely due to gravity, really belies the power of this advancement. The wearer's wrist movement causes the rotor to move back and forth, which winds the mainspring and powers the watch.
The perpetual rotor solved several challenges facing wristwatches at the time, including preventing overwinding with a clutch-type mechanism on the mainspring. In addition, the reduction in tension towards the end of a spring unwinding was previously a challenge that led to a reduction in accuracy. So, the perpetual rotor increased accuracy.
The Oyster Perpetual watch became the world's first self-winding watch and the technology is still at the heart of every modern automatic watch. It’s an interesting piece of timekeeping history that impacts us nearly a century later. If you’re in the market for a pre-owned Rolex in San Diego, I hope you’ll reach out. I’d love to help you find the perfect timepiece for you.
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