Precision for an automatic watch

Tag_ZA

Thanks for this, still quite new to this game. I will try the various positions and see what I get. Thanks 👍

Tag_ZA

Very interesting, I resyncd my watch and left it in the "3 Up" position for 24 hours and got a reading of -1s/d. It amazed me how different positions can result in such different readings! I will be testing all positions in the following week. I have found a new hobby 😗

Jim Dollares

I am currently measuring mine with the face upwards. After approx 60h it has gained about +3,5 to 4 seconds so mine doesnt seem to dislike 'face up' as much as yours

Tag_ZA

Nice, thanks for all the help with this. Mine hates face up 👎 So 3up is the way, lands up with less that - 1s/d and wearing it ends up with +1 s/d so I am pretty happy with that. I need a watch box that allows me to put it in the 3up position.

Jim Dollares

Is there such thing as watch boxes where the watches are put with crown up?

Jim Dollares

Maybe you can get a watch cabinett similar to Rob's and just mount it on the side, making all watches sit with crown upwards 😁

Mspeedster

I'm curious, what are you guys getting for the Heuer 02's accuracy?

My Dato 45 doesn't have a running seconds hand, so it's hard for me to know exactly how accurate my H02 is. From my manual timing based on the minute hand's position, I'd say mine is somewhere between +1 to +6 secs a day, but I could be off. So I'd like to know what others are seeing on the H02.

I'm not obsessed with accuracy, just like to get a base line read of my watches when new.

Jim Dollares

Maybe you can get a watch cabinett similar to Rob's and just mount it on the side, making all watches sit with crown upwards 😁

Mspeedster

I'm curious, what are you guys getting for the Heuer 02's accuracy?

My Dato 45 doesn't have a running seconds hand, so it's hard for me to know exactly how accurate my H02 is. From my manual timing based on the minute hand's position, I'd say mine is somewhere between +1 to +6 secs a day, but I could be off. So I'd like to know what others are seeing on the H02.

I'm not obsessed with accuracy, just like to get a base line read of my watches when new.

OttoWilliam

Maybe just maybe you can turn on the chronograph first and have it synchronize with your cell phone time when set it down. kinda like when you set the time for non hacking movement.

I really like that Dato45 though...👍

Jim Dollares

Mine is averaging about 2-3 sec fast. A little more when I don't wear it, a little less when worn.

Mspeedster

I've timed my Dato 45 now against a universal standard time clock over the last two days. The H02 is definitely more precise when wound well. By leaving it in a watch winder overnight, my watch is around -1 to +1 sec/day. I had the minute hand synchronized at 0 seconds over an hour marker so it was easy to see how much it moved, it was still dead center over the marker after 24 hours - pretty much spot on!

Then I tried timing it using @OttoWilliam's suggestion, again leaving it in a watch winder overnight. The Chrono function makes it run faster, it gained +6 secs leaving the chrono running for 24 hours.