YaeTek Watch Timing Machine Tester Tools Multifunction Timegrapher

It may be a cheap unit compared to others but seems to work very well indeed. I was able to bring my watches within half a second gain per day (sw500, sw200, eta 2824-2). Im pleased with my purchase you wont be disappointed if you get one.

I'm a hobbyist, and service some of my old vintage watches/pocketwatches. This thing is great. there's a bunch of these weishi ones rebranded for other stores/companies so they all work the same. The timegrapher itself works as described by many folks on the 'net. The instructions are ok, but there's enough folks online, and it seems pretty straightforward. One thing is i couldnt really figure how to change sensitivity/gain - i think i know but i just press buttons til something shows up. I'll check online later. I've checked everything from my mom's small ladies watches to my big sized 18s pocketwatches, and they all fit. Someone online had said max size was like 50mm but i had no problem shoving a 58mm pocketwatch case onto it. I dont know if i can test positions on the larger pocket watches as the clamps probably dont grip those larger ones well enough, but i'm sure its easy enough to jury rig some strap onto it to keep it seated. I mostly tested with it upright. I regulated the slow way: adjust regulator, check back in a few hours, adjust again. I shoved one Waltham pocket watch onto it that i've regulated, and it was reading +38s/day. I readjusted it, shoved onto the timegrapher, and it read +16s/day.... it was GREAT seeing how fast i can now regulate watches. I adjusted again and now it's about +3 seconds/day face up position (i'll leave it like that). I double checked Omegas/rolexes/seikos. Was great seeing some of these watches be so accurate. My omega planetocean of over 10 years is dead on, with almost zero beat error. exciting! It also helped me find some faults as well. I was kinda speculating some of my pocketwatches were out of beat and the timegrapher helped show that. the timegrapher won't pick up anything if the watch is completely out of whack and needs servicing big time. It's helped me regulate faster on watches that i have serviced myself. Overall i'm really happy with this product.

I felt into the rabbit hole of watch collection and just had to have this. Apparently after a short search, all arrows pointed to this product and after I used it for a few months, I can see why. No frills and just work, like many of my watches. It makes adjusting the mechanical watch much easier (if you are into that). By the way, it can also measure the time of Omega Aqua Terra 6900 movement which uses improved movement (co-axel, better than traditional Swiss level style you see in Rolex and such). It just shows two lines instead of one and weird bit error etc but timing is useful.

Good basic chronograph at reasonable price. Solid build. Must have for every watch enthusiast

I used this Weishi 1000 Timegrapher to successfully regulate my first automatic (non-quartz) watch, which consistently ran 10-12 seconds/day slow. (I took the watch to three watch shops and I was told three times "it's within specs.") After watching many on-line videos about how to adjust an Etachron regulator, I figured I'd give it a whirl. This timegrapher performed perfectly and I was able to check the watch's accuracy in multiple positions with the rotating and tilting microphone stand. Note: you need to know your watch's "lift angle" which you can easily set on the timegrapher. After that, using the timegrapher is quite intuitive. It's a very accurate and sensitive instrument. It took four or five very gentle nudges of the regulator back and forth, but I got the watch where I want it within ten minutes of effort. I would recommend this to anyone who willing to open up a watch and make microscopic adjustments.