Mechanical WW Need help ordering balance/HS for FHF 28

Charlie Ryan

NAWCC Member
Dec 10, 2017
134
4
18
58
Annapolis, MD
Country
Hi All

I'm a beginner. This is an FHF 28. While trying to unbend the hairspring, it came unpinned from the stud. I can't repin and easier to get a knew one.

Borel lists these parts. My understanding is that hairsprings are paired (tuned?) with their balance wheels. Is this the case? Are these parts both HS and balance wheel? I think I need the INCA part. What is the SSR part?

11-29-2019 10-09-42 AM.jpg
IMG_4212.JPG

BTW, what's involved with repining a HS?

Thanks for any help

Charlie
 
Last edited:

richiec

NAWCC Member
Feb 24, 2007
7,190
907
113
69
Brick, Ocean, NJ
Country
Region
Repinning a hairspring needs good eyesight, steady hands, the proper pin size and a way to vibrate the assembly after repairing it. rebending a harispring to proper condition is an art to say the least. It is best left to professionals if you have never done it before and the watch is an heirloom.
 

praezis

Registered User
Feb 11, 2008
576
75
28
Germany
Country
Region
Balance complete means wheel and hairspring. You need the Incabloc type. SSR is another brand of shock protection (Super Shock Resist).
Frank
 

Forum statistics

Threads
176,265
Messages
1,542,872
Members
53,213
Latest member
Jeries Ayyoun
Encyclopedia Pages
1,065
Total wiki contributions
3,031
Last update
-