a watch comes in with a broken or cracked jewel. A broken or
chipped jewel will cut the pivot, a cracked jewel will wick the oil away
from the pivot creating wear. If the watch uses friction set jewels,
the repair is straightforward and easy. If it is an American
railroad watch, a replacement bezel set jewel can likely be
obtained. But there are a number of pieces that do not fall into
either category. Some will replace the broken jewel with a modern friction
jewel, it works but the piece has been altered. This series demonstrates
the procedure for making a bezel set center jewel using a Clement Swing
Press out the broken
jewel and setting.
Swing Tailstock is not necessary but it allows greater control and
the brass setting blank.
the seat for the jewel.
the fit of the new jewel in the jewel seat of the setting.
bored jewel seat.
The next two photos show the bezel wall being cut.
two shots show the jewel being installed into the setting.
Setting is turned to fit the plate.
Setting has been parted from the rod, reversed in the lathe and is
now being faced to the proper thickness.
seen from the inside of the front plate.