The industry standard for these Woodturning Project Parts is "Silcon" brand. They feature a Seiko electronic movement and are supplied with an SR626 battery installed. Of course spare batteries are available if required. The approximate cut out for the 36mm insert clock is 34mm.
We also stock a gold swivel stand suitable for these 36mm clock inserts.
See also our matching 36mm Photo Frames and 36mm Photo Frame Cups.