Felsa 90

Felsa 90
Felsa 90

Description

The Felsa 90 described here is one of the latest cylinder movements of a ladies' watch and was probably made in the 1940ies or even 1950ies. Its measured size is 19.6 x 12.6 x 4mm (= 8 3/4 x 5 1/2 lignes, although it was listed in the Flume K1 with 5 1/4 lignes) and it contains 10 jewels.


minimally modified version
minimally modified version



As you can see on the details, this movement was a bit reworked during the production time frame.


dial view
dial view



dial view, different version
dial view, different version



Technical data

ManufacturerFelsa
Caliber90
Number of jewels10
Escapementcylinder
Shock protection(s)none
Balance cock directioncounterclockwise
Hairspring studfixed
Regulator typeLong regulator arm
Movement constructionEscapement wheel
Fourth wheel, Third wheel, Center wheel
Mainspring barrel
FunctionsHour, minute
Beats per hour18000
Size52/3 x 83/4'''
Image in Flume Werksucher 1947 46
Factsheet

Usage gallery


 
 
 

Links
Servicing a Felsa 90 (Spanisch article with lots of photos about servicing a Felsa 90)