ETA 7750 - Difference between driving wheels?
-
Recently Browsing
- No registered users viewing this page.
-
Topics
-
-
Posts
-
-
Any naphtha will leave an oily deposit - as it is a petroleum distillate. Light naphtha is fine for cleaning watch parts as long as you do a final rinse with isopropyl alcohol. Try the mirror test on a watch cleaning solution, like Elma WF Pro - it leaves a residue. Which is why you use a rinse, and then a final IPA rinse. This is what I sometimes use on very dirty parts - it is a light refined naphtha, and on the mirror test leaves a slight oily residue. The IPA, of course, doesn't leave a deposit. -
By rossjackson01 · Posted
Photographs, please? -
By Neverenoughwatches · Posted
Instead of using tweezers, put a piece of rodico onto a toothpick or pegwood. Then set your spring to the rodico, this way the spring is not under any tension when floating it back into the bloc. As you bump into the bloc when trying to find the entrance the rodico will give but still holds onto the spring ie. You wont have the rigidity of tweezers. -
By Neverenoughwatches · Posted
If frank says these bombè jewels are for balances and similar pivots then they are used cupped side facing the pivot and then capped i assume. In Nicklesilver's reply i guess that cup can also be reversed and used as an oil reservoir leaving the shoulder riding on a less frictioned domed surface. 🤷♂️ Hence the use of them on wheels closer to the escapement that have less torque requiring efforts to reduce friction and are also uncapped.
-
Recommended Posts