Hello!
I opened a beautiful Hamilton H231 (ETA 2412) and I found that the upper jewel from the Anker wheel had a cap jewel, in a sort of Duofix system.
Any advice on how to oil it?
Do I deal with it as with the Incabloc jewels (like in Mark's video's) by putting oil on the cap jewel (1/3 -1/2 of its diameter)?
Or do I put it back after cleaning (cap jewel, spring) and oil it from beneath.
In his videos Mark used an automatic oiler (that I don't even dream of).
Thank you,
Bogdan
p.s. the movement has 6 3/4 lignes (15.3mm)!!! So cute!