Timegrapher 1000 Hamilton H10/ETA 2824-2

[denturegeek]

Hello Mark and Watch Repair Talk Family, 

Trying to explain/understand....

Purchased new Hamilton Khaki King Automatic with H-10/ETA 2824-2. Straight from the box, set and gave full wind and allowed to run over night. Noticed it had gained about 40 minutes overnight. Placed on Timegrapher 1000 and ran for 5 minutes in DU position. Took 1 minute intervals and averaged and it showed:  +0.4s/d (3 times it was 0 and 2 times it was 1), 290 degrees amplitude 0.4 ms beat error. I set the lift angle to 50 degrees per some chart I found on line (watchguyliftangles). I ran on both the 50 and 52 degrees (default) and the numbers were the same. Darn near spot on perfect numbers BUT! the watch is gaining 5 minutes per hour in real life? My Timegrapher  appears to be functioning correctly based on placing my recently factory serviced Sub 3135 and it running like it should.  I didn't want to attempt opening and voiding the warranty, I  returned the watch in question and they sent a new one.  Straight out of the box, very similar numbers on the Timegrapher, spot on,  but this one  keeps near perfect  time in real life like it should.  

Can anyone shed any light on how this could be?

You are all my heroes!

Thanks

Gene 

[clockboy]

Welcome Gene enjoy the forum. Although tempting as it is to open the watch to see if you can see the fault just return it. Opening the watch will invalidate the warranty. 

[JohnR725]

17 hours ago, denturegeek said:

new Hamilton Khaki King Automatic with H-10/ETA 2824-2

I was looking up what movement you might have and there's only some minor confusions. Like the base caliber is supposed to be ETA C07.111 which if it was would be a problem. If you look at the specifications for that movement it comes in three variations. Silicon hairspring which you wouldn't have because it's really expensive. Synthetic escapement which if you had you can't time it won't time correctly on your timing machine. Then as best guess this is what you probably have a ETA caliber C07.611 which does have a lift angle of 50°.

than it would've been nice if you had photographed your timing machine results. While it might've looked perfectly you it would've been nice for us to see any way maybe we would see something you didn't see. So in absence of that we have to guess but at the very last link it's a video that would be a reason why you would have a watch running abnormally fast and sometimes looking perfect on the timing machine. But it's more of a wild speculation guess without having the watch. Then the only way we would've really been able to tell is to void the warranty.

https://www.watchspec.com/hamilton-khaki-field-automatic/

https://watchbase.com/hamilton/caliber/h-10

https://watchbase.com/eta/caliber/c07-111

https://www.reddit.com/r/Watches/comments/7jejod/info_so_the_hamilton_h_caliber_movements_are_not/

https://watchbase.com/eta/caliber/c07-611

https://youtu.be/Rcqrb3_vin8