ETA 2836-2 Movement
May 29th, 2008 by AnA
I had just purchased a Swiss made ETA 2836-2 25 Jewel movement from eBay. I think this movement is used in many famous watches, including Rolex, Omega models etc. This movement will automatically wind by a semi-circle weighted rotor which rotates as the watch moves while being worn. Many feedback from those whose use this movement has always been good and positive.
This ETA Swiss automatic movements are durable, reliable, and last for a long time with proper maintenance. This trend has proven itself over the years. If you are looking for something entirely reliable, that you can just wear for years to come, then a watch based on this movement would probably be the best buy for you. Generally, for a automatic movement, it will never be able to over-wind as it has a clutch assembly on the mainspring to allow the mainspring to slip once the watch is fully wound. This Swiss ETA movement is a bi-directionally winding movement, which makes it very efficient. This means that whether the rotor turns clock-wise or counter-clockwise, it still winds the movement.
This ETA 2836-2 is a 28,800 BPH movement. BPH means Beat Per Hour. It also means the watch ticks and tocks 28,800 times per hour. Actually, it is the balance wheel which makes this number of swings clockwise and counter-clockwise every hour. Each swing is a “Tick” (or Tock) and the number per hour, divided by 60 minutes, and 60 seconds, will tell you how smooth the seconds hand runs. For the case of the ETA 2836-2, we have 8 “Ticks/Tocks” per second, and the hand will appear to “Sweep” across the dial, this is the smoothest you can get for this movement. I heard some could go as high as 36,000 BPH. But, I have yet to see one myself.
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