Strange I have two Fema clock movements to repair, both with broken mainsprings and one with a broken click spring, can you please tell me, are the click springs readily available???has anyone bought one, if so where from?
Photo attached of good click spring, this is the type that I need..
Hope you are all well..
Hmmm, kind of!
But........ It shows great potential as a hobbyist alternative, with some tweaking.
After a back and forth with @Andyhull on another thread it got me to thinking perhaps it's not as useless as my initial annoyance led me to think, (I broke a mainspring trying it but to be fair the spring had been previously abused and the tool wasn't ideally sized allowing the coils to jump and tangle).
I had a bit of a resize with sanding stick and scalpel and tried again and it's certainly got promise, I need to tweak the file to suit specific barrels but it's a simple quick 3 part print using barely any filament.
Obviously not anywhere near as good as the proper bergeon winder but definitely cheaper for the hobbyist, (even if you haven't already got a printer and had to buy one first).
Here's a video of it if anyone is interested, comments and ideas are welcome.
I have a Rotary Monza I am fixing up. I disassembled the barrel and removed and cleaned the mainspring. I secured a copy of the parts list and it shows that as well as the mainspring, there is also a Brake Spring (part 775 on the picture). What is it, and do I really need it? Certainly Cousins does not sell it. I googled AS 1902 brake spring and ONE result came up of a Russian watch forum discussing this item. Apparently it is thicker than a normal spring and it seems to have some sort of bent over feature on it. Can I just make one using the old mainspring? If so, how long should it be? Is it really necessary?
ROTARY Monza AS 1902.pdf
Recently replaced the mainspring in a vintage watch (a Westfield 7j). Cleaned and lubricated watch. Worked fine for several days. Now I have a problem in which it stops before the mainspring is fully unwound--power reserve appears to be less than 24 hrs, but I haven't done a precise check. Just noticed this morning that it was stopped at about 0530. Prior to this the watch had good power reserve and the mainspring fully unwound--power reserve over 30 hrs. What kinds of things might cause this?
I have an ETA 2750 movement and I need to replace the mainspring. My catalogs don't cover this caliber. The current mainspring, based on my measurements has the dimensions Dennison (Metric), W: 5 1/2 (1.45 mm), T: 9 (0.13 mm), L: ~ 14 1/2" (368 mm). However, due to its age and the fact that it's been serviced before I'm not completely sure the old spring is the correct one. So my first question is are these the right dimensions for the proper mainspring for the 2750?
My second question is does anybody know some part or catalog numbers for the correct mainspring by some different manufactures of springs, such as Marco, Nu Vigor, Sandsteel, etc.? I have some cabinets of mainsprings from which I might be able to get one but I need to know the a catalog/part number--some number I can cross reference to what I have. Hope this makes sense. Thanks.
thanks for your input but your wrong on several levels about black dials and white dials and what eterna made and did not make your input is nothing special.A few Eterna ATP watches have been found with both black and white dials, mostly black, and a central seconds sweep hand. Black dials and central seconds are inconsistent with the ATP characteristics, but a handful of Eterna ATP watches exist and it is thought that about 600 may have been made from the known serial numbers.So there are black and white dials and the 850 series movements
Most military watches have a number engraved on it somewhere... there always remained the property of the military and the numbers were meant to keep track of who was issued what. Also the numbers helped to ensure servicing records kept accurately.
For the two dots on the hand.. this was more to break up the large mass of luminous material.. nothing special here.
Also I believe most military watches are usually black dialed?
Before - and - After 107 Timex Automatic. This model orginated with a 31 automatic and was later made with the update 107.
This watch insored designer Todd Synder to create a monern version. Actually quite a nice homage but saddly only a quartz