The popular middle ground these days is 28,800 bph: a good mix of accuracy and durability, and the frequency chosen for the Valjoux 7750, ETA 2824-2 and Unitas 6497, three of the most produced watch movements on the planet, used by nearly every watch company that isn't a complete in-house manufacture. Note: Make sure your watch is mostly wound before testing. Watches with a high bph, like the Zenith El Premiero at 36,000 bph, tend to be more accurate, with a smoother movement of the second hand, but potentially require more service due to the higher amount of wear it generates. Watches with a lower BPH, like Rolex 1675 at 19,800 bph, have a jumpier seconds hand, slightly less accuracy, but anecdotally require less maintenance over time. In other words, the number of times the balance wheel will swing half a rotation over the course of sixty minutes. The top-line statistic when describing a mechanical watch movement is the bph/vph. Every time I've asked an eBay seller about the timing of the movement, and they say "runs great, probably under a few minutes a day", its a huge red flag that they don't have knowledge about what they are selling, undermining their credibility and in turn, my interest in buying from them.īeats per Hour (BPH) or Vibrations per Hour (VPH) If you notice one of your watches struggling or having problems, you can generate some decent ideas as to what is wrong in a few minutes so you can decide where to take it.Ĭonversely when selling a watch, including the Beats Per Hour (BPH) statistics on your 'For Sale' post shows you to be a more knowledgeable seller who understands what serious buyers want to know. If you like to buy pre-owned, especially vintage watches, its a fast way to get a snapshot of the movement you are dealing with so you know if you need to bring it in for service right away (or return it). There are a few major benefits to having a Timegrapher. You don't even have to take the back off the watch. Although not the heavy duty analytics tools real watch repair shops use, for under $200 it is a very worthwhile tool to have around, and its incredibly quick and easy to use. A timing machine, or timegrapher, lets him get a quick snapshot of how a watch is running.īeing someone who likes to really set up shop in my hobbies, and having already started the TZ Watchmaking course, I thought a Timegrapher would be a great addition to my watchmaking desk and a useful tool to determine how well my watches are running.
WATCH TIMEGRAPHER APP HOW TO
Why You Should Own A Timegrapher (and how to use it)Įvery time I bring a new watch to my watchmaker, he immediately puts it on a stand and shows me as a little blue screen drawing lines, mumbles something, and then gives me an idea of the movement's health.
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