Care to share which countries you've lived in so far where you've bought Pentax stuff so we'd know where to look at?
Thanks and cheers!
Can I chime in?
I've bought all my Pentax gear in the UK while I was studying there. The shop, SRS Microsystem, informed me that all Pentax products sold are covered with 1 year international warranty and 3 years UK warranty. When I asked about the international warranty, they told me that it goes by serial number and the receipt.
A few weeks after my purchase, the DA*16-50 died because the SDM. Sent it in, and got it back a week later with the AF motor replaced.
10 months later it died again. Since I was already back here, I dropped by Emjay. Emjay told me that I would have to bear all the cost (repairs and shipping to Japan). Puzzled by this, I sent an email to Pentax Support. And here's their reply:
"In order to repair the camera outside the UK you need a valid international warranty card.
The card has to be stamped by the dealer (SRS Microsystems). Having enclosed a valid warranty card you are not charged for the service."
So having no warranty card, it's as good as having no warranty for a product that's barely a year old. Frustrated by this, I tried the SDM self-repair using a guide found from PF. It worked, and has not given me any problems so far. Interesting, won't you say? On a side note, none of my other Pentax lenses or the K-5 that's bought from the UK showed any issues.
So for those who wants to purchase Pentax gear from the UK, it's imperative to get that card stamped (and don't forget the 20% VAT refund! It's done by them, so you get back the full 20%, less the 10 quid processing fee).