Fellow owner of a 2531.80 of a similar vintage. It's been on my wrist through many sailing and climbing adventures. Fantastic watch for the money and quite durable. Keeps great time for a mechanical watch as well.
I will note, however, that if you take back to the snooty jeweler you bought it from for a bracelet adjustment and then drawl "Hey, how ya make that laser shoot out?", they will not think you are funny.