291 New Watch Band Spring Bars & Tools288 New Bestfit Watch Band Spring Bars we believe this one is the nicest we've seen to date. It measures approximately 5" (127 mm) Pocket Case Wrench. This is a new pocket case wrench. Adjustable tempered pins for easy use on water resistant cases. Its compact size makes it very convenient. Tips adjust from 7/16" to 2 1/8" Case Knife. This is anew case knife opener. Configured to make opening certain cases easier, this opener is popular among many watchmakers. Simply place the blade under the case back and twist. It measures approximately 3" (76 mm) long.