Separate names with a comma.
I found a patent by two americans - E . R Wait & J Willard Phelps from 1863 . Could this be the forerunner .?
US37714A - Improvement in...
I agree with you paul . 1879 must be wrong (I have seen this internal click wheel in earlier watches). I have not found the year Mairet invented...
The "internal" clicks on the winding train , was also invented by him and patented 1879
The double-stem winding system / keyless mechanism for watches with two barrels was invented by Sylvain Mairet
Currently there is a pocket watch on ebay, with a almost identical movement made by Girard Perregaux
Hello Mazzond .
The movement is not by Patek Philippe , and it has been tampered with .
The PP engraving on the movement is not original . If it...
Jules Monard - Geneve
No , it is not Longines . It is BAUME . (From Pritchards book)
It is by BAUME & Cie ( Baume Freres)
I believe your watch was made by " L A Favre Brandt " ( Favre & Andrie)
I believe these movements were originaly key wind movements , which much later has been converted to stem winds . I am guessing the movement was...
Here is another early keyless winding mechanism. This one by L De Liman of Besancon .
The information you recieved is not correct. You need to contact the Audemars Piguet museum in Swirzerland . They have access to the old work...
I believe your watch is from Patek Philippe , with a ebauche from Lecoultre .
It would be interresting to see a image from under the dial too ....
It is possible that this is a early Patek Philippe . Could you provide some more images ?
[ATTACH] [ATTACH] [ATTACH]
I Believe the abauche / raw movement comes from Japy Freres , Warwian .
I am not sure , but I do not think that Clemence Freres (Beurret) made raw...
Thank you , Dr.Jon . So the " E " is for Eugene . I have wondered about who " E Lecoultre " was for some time . After a search on the internet I...
I believe Artbissells movement was made by the firm of Antoine Lecoultre . In his early watchmaking career he was based in Geneve , so this is...