That's not unusual. Sailing is a rough business. Ever heard of Lombardy Banking? Thus so named because it has its origins in the Lombard region of Italy during the Medieval Era, it was one of the first interest based forms of banking. It was kind of a precursor to the modern day Pawn Broker model, you pawn something of value for a fraction of its real worth and then pay interest up the ass to get it back.
This form of 'banking' took off in port cities across the world back in history, mostly preying on sailors. In fact most port cities across the world had a Lombard Street because of this, and some still have theirs even though they're no longer used to host businesses that do this anymore. San Francisco still has its Lombard Street, but its mostly famous for having a winding, meandering zig zag that makes no sense these days.
At any rate, sailors would be stuck at sea with a bunch of other stinky guys for weeks on end, no forms of entertainment or leisure and just a relentless grind of maintaining a ship that constantly needed steering, navigation, maintenance and whatnot. It only stands to reason that when they did finally dock, they would make tracks to the nearest Lombardy Banker and pawn that expensive watch. Then, hookers and rum! YOLO.
Sailing is a rough business, man.