zOwie Omega Discussion Forum

: In regards to a particular watch's accuracy
: like the SMPC Chronograph, is it a matter of

Just like as they say for automobiles, "your mileage may vary." These are mechanical devices that are being put through very different conditions. How you wear yours, the temperature conditions and changes, vibration and shock, movement patterns, state of winding, and many other things cause small variances in the performance.

: Is this present accuracy state one that will
: remain or does it change over time?

It will change somewhat as the watch settles in. Other variations are possible as described above.

: Is +2 seconds/day considered "good"?

It is considered GREAT. The expected range of a mechanical movement good enough to be certified as a 'Chronometer' is +6 to -4 seconds per day.

: watches would you hold on to this watch or
: exchange it? (It is a new watch purchased
: from an authorized dealer).

Exchange. You can test the date change time and the clasp in store before you accept the watch. Only on the exact accuracy will you not be able to tell how the replacement one runs until after you have used it a few days.

But as long as it is within the +6/-4 range, you should be happy. If it gets worse as it settles in, then you can have it adjusted under warranty. Otherwise, don't bother fiddling with it.