Yema In House caliber Precision

Hi everyone,

New here, so bear with me while I learn the ropes. I recently picked up a Yema Superman GMT which I'm quite happy with. It's a 39mm case with a domed crystal and has a 24hr second time zone, and suffice it to say I was sold on it pretty quickly. One thing I have noticed is that Yema are equipping their watches with in house movements these days (in my case a Yema 3000). I've noticed that the accuracy on mine isn't great. I have regulated it on a flat surface to a pretty OK spec, but performance varies wildly when the watch is at an angle or the power reserve isn't close to full. Has anyone else got experience with these movements? Is this a one-off experience, or something to be expected?聽

Otherwise really enjoying this piece. It has stolen a lot of wrist-time as of late.聽

nice one. i love yema especially superman dive watch. yema tend to have locking system in the bezel, and my question is did the locking mechanic will scratch the bezel? thank you 馃嵑

Unholy

nice one. i love yema especially superman dive watch. yema tend to have locking system in the bezel, and my question is did the locking mechanic will scratch the bezel? thank you 馃嵑

It locks into the notches on the bezel, and not the top part where the numbers are. On the contrary, I actually think it has protected the bezel so far.

Caaarl

It locks into the notches on the bezel, and not the top part where the numbers are. On the contrary, I actually think it has protected the bezel so far.

thx for the insight. appreciate it 馃檹馃徎

There was a known issue with the Yema movements (I wasn't paying attention to watches for a few years so I don't know the details). They've probably fixed it by now, but could yours be an older one?

I have a wristmaster adventurer with YEMA2000. I have not tested it precisely, but from what I checked it falls within -/+ 20 seconds per day. It falls within their maximum tolerance of -/+ 25s/d, however it is also a little bit disappointing. It's one of my least accurate watches (only wins with unitas from 1988 which is a manual caliber and it has seen a lot...). Even my NH35 was more accurate, not mentioning Sellita SW-200 or Powermatic 80 which are in similar price range. From what I have read they invested about 2,000,000 euro into researching their caliber, only to achieve slightly better variance than ETA-2824 (in theory of course)? Slightly better power reserve than ETA, the same as Miyota 9015. I rather see it as a marketing aspect "We have an IN-HOUSE movement"I love the design, love the history of brand, however this caliber does not seem like a good choice and I am not probably going to get another Yema in the future. I got their book "Time of heroes", maybe I will know more if I finally find time to read it thoroughly. Don't get me wrong, I do not regret buying this watch, but if one of yous reading it can get their watch with sellita sw-200 I would rather go this way. 聽

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Mateusz

I have a wristmaster adventurer with YEMA2000. I have not tested it precisely, but from what I checked it falls within -/+ 20 seconds per day. It falls within their maximum tolerance of -/+ 25s/d, however it is also a little bit disappointing. It's one of my least accurate watches (only wins with unitas from 1988 which is a manual caliber and it has seen a lot...). Even my NH35 was more accurate, not mentioning Sellita SW-200 or Powermatic 80 which are in similar price range. From what I have read they invested about 2,000,000 euro into researching their caliber, only to achieve slightly better variance than ETA-2824 (in theory of course)? Slightly better power reserve than ETA, the same as Miyota 9015. I rather see it as a marketing aspect "We have an IN-HOUSE movement"I love the design, love the history of brand, however this caliber does not seem like a good choice and I am not probably going to get another Yema in the future. I got their book "Time of heroes", maybe I will know more if I finally find time to read it thoroughly. Don't get me wrong, I do not regret buying this watch, but if one of yous reading it can get their watch with sellita sw-200 I would rather go this way. 聽

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Update: been wearing it on my wrist the past 48 hours and somehow it ran out of power reserve at some point because it was a few hours behind.聽

I agree with you that it鈥檚 most likely a marketing led product planning decision. It鈥檚 not the reason I bought mine, but I can see how someone in the market would be. Now I鈥檓 a bit ticked off that they didn鈥檛 go for a tried and tested solution, but what do I know. Maybe they shift enough product to leverage economies of scale over something like a third party supplied movement? I鈥檒l wear it non stop for another week before contacting Yema about the matter.聽