We would advise that you wind your watch 20-30 full rotations of the crown prior to wearing. During normal wear your wrist movement should be enough to keep the watch working. If you remove the watch, when fully wound, it will continue to run for the length of the power reserve before stopping.
You can access your instruction manual by visiting here https://uk.bulova.com/manuals. All manuals are listed in their collection name. If you require further help locating the correct manual for you watch please contact the Bulova UK Service Centre service@citizenwatch.co.uk.