We live in Northern California USA, and we have a six year old daughter. Most of our vacations are in the western United States like Disneyland in Southern California, baseball spring training in Arizona, family vacation home in Oregon, Denver Colorado... Close stuff (relative to the world)..
For those I wear my grail, obtained last October: Patek Philippe Nautilus chronograph 5980/1A.
Prior to landing the grail last year, I wore a vintage Omega Speedmaster (105.012-66 CB for those who speak Omegalese) on our trip to Italy (Venice/Florence/Vienna/Rome/Scalea). But it was the first time I decided to wear a significant vintage watch on holiday. I knew we wouldn't be swimming so I saw no reason not to enjoy it!