NOS unused 1960s old-stock JB Champion out of production stainless steel center scissor-expansion perpetual calendar watch bracelet. The calendar shows the 1st on each day of the week so it always works. The ends are curved spring-loaded self-adjust to 5/8" (just under 16mm) 11/16" (17mm-18mm) and 3/4" (19mm). Spring bars are included, remember to tell us what size you need. The length at the spring bars is 5 3/4" (146mm). (3) 1/8" removable links. We might have links to add, send a message with length you need before purchase and we'll see if it can be done. 12C.17843