My white 20mm one with a brown leather band started more conversations than anything else I’ve ever owned and used, which was surprising but neat :)
Unfortunately mine got stolen and broken, which is a shame. I wonder how hard they are to buy today, and how difficult battery replacements for them are…
Battery replacement is difficult, not impossible, but bordering on impossible is restoring the waterproof seal. Once you've replaced the battery you basically have to keep it away from water. I wasn't careful with mine and lost two to water damage after replacing the battery, despite re-sealing with permanent adhesive.
Good to know! IIRC the Round didn't have as high a water resistance rating to begin with, and I typically wear a leather band, so this might not be a deal-breaker for me.
The PTRs weren't diving watches for sure, but the original waterproofing was easily good enough to withstand submersion, as long as the battery hadn't started swelling yet.
Unfortunately mine got stolen and broken, which is a shame. I wonder how hard they are to buy today, and how difficult battery replacements for them are…