Resizing a Band With an Adjustable Clasp

• For watches featuring spring-bar clasps set in notches, adjust the size by moving the spring bar to a different set of notches. Stick a straightened paperclip through the outside edge of the notch and depress the end of the spring bar. Slide the bar with the attached watchband out of the notches, then replace one end of the bar into a different notch. Depress the opposite end of the spring bar and slide it into the matching notch on the other side of the clasp.
  
  

Resizing a Stretch Band With Links

• For stretch-band watches, turn the band inside out. Holding the band taut in one hand, wedge the tip of a small, flat screwdriver into one of the side flaps of an interior link and pry it up. Use caution to avoid accidentally stabbing your fingers. Repeat with the flap on the other side of the link, then pry up the two center flaps and remove the link entirely. Remove as many links as needed to correctly resize the watchband, then reconnect the two ends of the watchband by reattaching the bottom link and closing all the flaps.
  
  

Resizing a Watchband Fastened With Pins or Screw Pins

• Find the pins on the sides of the watchband holding the links in place. A small arrow stamped on each link will indicate the direction to push the pins to remove them. Place a pin removal tool or a sturdy pin with a broken point against the tip of the pin and push in the direction of the arrow. It will require a bit of force to remove the pin. Push out a second pin at the end of the section to be removed. Reassemble the watchband and replace the pin by pushing it back in the opposite direction of the arrow.
  
  Some watches have bands in which the pins are actually tiny screws. Watches with screw pins tend to be expensive, so if you doubt your ability to adjust the band without damaging your watch, have it resized by a professional jeweler. Otherwise, use a jeweler's screwdriver to unscrew and remove a pin anywhere on the band. Remove the desired number of links, then reassemble the band and screw the pin back into place in the now-shortened watchband.