outils horlogerie pose changement de bracelets pour montresWatchmaker accessories Watch band & leather strap spring Tool Bergeon style tool (fork, tip) to remove your old watch band, and put your new one for watches with normal or perforated ears with any type of spring bars or pins. Also works to change your buckle. A millimeter ruler will help to measure your watchband width. This tool will help to change your strap with 90% of watches including Zenith, Jaeger Lecoultre, Herms, Longines, Vulcain, ABP is not