Re: 2836 Question ... again ..

Jack Denver wrote:

In addition to a slow drift, I've had watches that suddenly "jump" from one rate to another - maybe something jostles the regulator or a bit of machining debris lodges in (or works free from) a jewel.

Same thing over here, too. My M12 with 2824-2 did exactly that: +5 to +7 secs/day when out of the box. I had it regulated to +1 six weeks later. Three weeks later, out of a sudden, it started losing rapidly, about -3 secs/day. I've got it now at -1 to -2 secs/day time and approx. +1 to +2 secs/night time when stored dial down, so it pretty much gains back over night what it loses during the day. I guess I'll have it reregulated back to a slight gain in a few weeks again.


But chances are Tony's watch will still be running fast at the end of 2 months and possibly even most or all of the same 25 seconds fast. 

It might settle in around +20 secs/day, which is ways too much for a 2836-2.


If he intends to regulate it himself, other than the fact that the less you open the back the better, I don't see why he can't just regulate now and have a good running watch right away. If it slows down later as it probably will, then he can re-regulate if necessary. If this were my personal watch that's what I'd do.

I'd probably trim it down to +5 secs/day or so and then give it at least another two months to settle in again. Only problem is the ETACHRON regulator that only permits trimming in a range of +/- 15 secs.

Best regards,
OP
.