Yesterday I dismantled my pivoted detent Swiss chronometer.
This watch with gold dial has obviously been recased at sometime
into a steel case and to accommodate this it has been converted
from pin set to lever set. It has a split compensated balance,
a helical hairspring and gold and platinum screws.
I would say that the movement dates to the late Victorian, about
I've had this watch a while now and it's been at the end of a
long queue for a service.
I found a few issues which need to be sorted..a cracked endstone
on lower balance, a cracked pivot jewel on balance cock and the
lever on the setting mechanism is a sloppy fit and needed sorting.
Fortunately I have the correct jewels to replace the endstone and
pivot jewel which are of the type which are rubbed into their settings
and the setting lever I tightened by letting down the shoulder on its
Also the Maltese cross has been removed from the stopwork on
the barrel. This is fairly common as these can be troubelsome and
I know that some watchmakers removed these as a matter of course
regarding them as an unnecessary refinement and the cause of more
trouble than advantages.
This type of stopwork limited the mainspring to be wound four complete
turns, if I have the parts to restore this stopwork I will but I'm
not to fussed as the watch is far from original anyways.
Nevertheless, this is an interesting watch and despite being in a later
case is well worth the care I shall lavish on it.
The movement and the dial are unsigned and I expected to find a clue to
the maker on the dial side...alas no only the serial number but on
removing the barrel bridge I was surprised to find the maker had signed
the watch underneath.
Who can guess the maker of this watch?
Clue...it is a maker that everyone here has heard of and some will
have watches with this makers movements inside... you'll be surprised,
These pics are of the watch pre service (filthy) as it is now in pieces.