I just got a Polar Surveyour II (which is gorgeous, btw ; one of the managing partners of my firm was there when it arrived, stayed to see me take it out of the box, and complimented it profusely. He's more of a Rolex President/Patek/Lange guy, but he can't keep his eyes off it when we're in meetings now...) and was reading the papers to figure out how to set the second time zone when I noticed that this watch is rated to be accurate within 15sec/day. I think I remember the Phantom listing accuracy to 2sec/day. This might just be a difference in the literature from the year it was produced (2005), or because it's the K751, but that got me thinking. I haven't re-set my Phantom since I got it around 5 months ago, except to adjust the date at the end of June and September; it's off less than a minute, somewhere around 1/3 sec/day! I checked the PSII today, and it is off a minute since yesterday. I'll put that down to user error for the time being, but I'll be interested to see how accurate it is over a longer time period.
Now, before my I got my Phantom, I got used to vintage mechanical watches that measure +/- in minutes (or high-end quartz watches that are so accurate the might as well be digital, but they just seem so soul-less). So even +/- 15sec in a mechanical is impressive to me. But the Phantom losing only about 10sec/month? wow!
So, here's the question: how accurate is your Kobold? Is the Phantom's movement that much more accurate than an older PSII's K751 movement (which is essentially a modified/reworked version of the Phantom's movement)? How about the other movements?