r/QuartzWatchRepair

Hi- I have a quartz Bulova that needs a new battery. I could not get the top left screw out. I replaced all screws and took it to a jeweler.

They couldn't get it out either! They work on all kinds of watches and have been in business for decades.

Now what? I have some synthetic clock oil, could I drip some around the offending screw and let it sit a few days?

I also have some Kroil Penetrating Oil; but it is more viscous.

I know I will have to dry the threads thoroughly before assembling the watch, but I need to get it apart first!

Thanks!

Hello, everyone,

I’m writing this quick post because I’m having trouble finding reliable information about the movement in this watch, which needs to be replaced!

It’s an ETA 955.124 (as marked on the movement), and I’m wondering about the interchangeability between ETA movements. I’ve found quite a bit of conflicting information, particularly regarding the interchangeability between the 955.124 and the 955.122. Do you know if these two movements are indeed interchangeable?

The movement has a coil problem (broken wire) on the electronic circuit, and I'm also wondering if I should just replace the electrical circuit—what do you think?

Just to clarify, I'm a beginner, and this is my first "big" repair!

Hello everyone,
I recently bought this electromechanical watch.
Sadly it isn’t really working. I bought new batteries and the balance wheel is swinging freely. But when I shake the watch slightly it starts up but then comes to a slow stop after about 5 seconds. Does anyone know anything about these types of watches and can help me identify the problem?
Help would be greatly appreciated :)

Hello! I have a Casio B640 which I took the module out of the case of…
I foolishly did not track where two pieces went and was wondering if anyone would know as I can’t find any assembly guides online…
Where do these two thin metal pieces go?

Watch in question. It's a watch my dad used before getting a watch that could read his blood pressure.

Took it to a watch shop and the guy had no clue
Couldnt find this answered anywhere else online
Tia

Hello all,
Eight years ago as a freshman in college I purchased this beautiful quartz GMT watch from the company GPW. After owing it about a week I dropped it on the tile floor in my dorm room and the movement stopped. Since the warranty did not cover shock, I decided to open it up myself (using a screwdriver and mallet :E) and see if I could diagnose the problem, and after opening it I realized I couldn’t, so I put it in a ziplock bag with the case back off and movement ring removed and left it in a drawer in my desk for nearly a decade.
I discovered it on a recent trip home and decided I’d like to restore it since it’s a good looking piece, has great lume and wears light on the wrist, being titanium. However, I still don’t know what I’m doing. I’ve identified the movement as a Ronda 505D, and I suspect it needs to be wholly replaced, but I’m very apprehensive about taking the hands off because I don’t want to damage them. I also noticed a mark on the dial and I’m not sure if it’s from the original accident or me messing with it since. I’d like to restore it to a good condition but I’m not sure where to start. This would be my first project like this but I’ve been an avid scale modeler for a long time and I am confident in my fine motor skills but not my knowledge base. I therefore have some questions:
-Is it likely that I would be able to disassemble another 505D and replace most of the parts without taking the hands off the movement? As I said I think they’re likely irreplaceable (a visit to GPW’s website will indicate why) and I’d rather not mess with them if at all possible
-Does the mark above the seconds hand look like a scratch or could it be something else? I’m not really sure how it could’ve gotten scratched like that. Some dust I think has gotten in while I’ve been messing with it but the pattern doesn’t make sense.
-Where is a good place to start on tools for something like this? I see you can get repair kits that come with obvious things like case back openers, screwdrivers, magnifiers etc. but are these generally a good buy or should I get tools separately, and is there anything I would want that’s not usually included in these toolkits?
Edit 1: also what are safe ways to clean dust out of this without damaging the hands?

Thanks a ton for your help yall!