The 5914 series watch movement holders are reversible and individual holders are specific to one ligne size only. Round shape is made of nickelled brass and is Swiss made. One ligne equals 2.256mm.
Reversible watch movement holder
Specific to one ligne size only
Choose from 7-1/2L, 7-3/4L, 8-3/4L, 10-1/2L, 11-1/2L, 12L, 13-1/4L, 13-3/4L, and 16-1/2L