Panerai 359
When I got it was running around +40 / 24h, sent it under warranty to Germany through AD in Prague, came back running +50/24h, the watchmaker at AD put it on timing machine and laughed, back to Germany then, it came back running around 0.5s / 24h but it still left bitter taste in my mouth, especially when a lot of people I talked with reported similar timing problems with the 3 day calibers.