After sizing hundreds of watches, I found the worst watch to ever size... And it was my first San Martin.
The pin and collar system on this watch is genuinely horrendous. Just to remove the pins, you need to use a link remover, which is usually enough for 99% of watches, but nope, you then have to use a hammer and pin removal tool together to fully get the pin out. But that wasn't the worst part... Putting the pins back in and then having to use a small hammer to hammer the pins back in without damaging the links. And yes, I damaged pretty much every single one. After years of never damaging a link before.
I didn't think my first San Martin experience would go like this. Lets just say I will never be purchasing a watch with a pin and collar system ever again...