A 34-year-old New Canaan woman reported her $8,000 diamond-studded Rolex watch was stolen from Equinox Gym at 72 Heights Road Friday, Sept. 18.

The woman said she forgot the watch in a cupholder on an exercise machine on Sept. 18 after working out for about 45 minutes at the gym, according to police.

The woman didn’t realize the watch was gone until around 1:30 p.m., about an hour after leaving the gym, according to police.

She reported the theft to police Sept. 23, according to police.