Jump to content

Recommended Posts

Posted

I have a nice looking Omega 1342 Quartz that is not functioning with new battery.

I am wondering if there is any troubleshooting guidance someone can provide to figure out what might be wrong.

I am sure all the parts are in the watch.....

Appreciate any help.

 

Steve

Posted

A service would probably get it working again? If there aren't any corrosion or leaking batteries i think it will be alright. 

Posted

I had one recently. This is what I did-

New batt, not running. Used Voltmeter on the points that attach to stepper-motor. Look for first a neg then a pos reading--every second. An Analogue meter is preferred to see the pointer swing, but a fast operating (Not Autoranging, as they are just too damned slow!) digital will do.

In my case, the pulses were present and the motor was O/C. New ones can be had from Sweden, but at a stupid cost...

Its part-number is-- 1342 9400, motor.

  • Like 2
Posted

Just thought--The pulses Must be neg/pos alternating for the motor to turn forward each second. If one half of the 'H' Bridge of four transistors Inside the driver/timer chip are faulty, you'll only get pulses of one sign and not alternating, if this is the case, the chip/board/electronics will need replacement. This is a pretty early genuine Omega calibre and not an ETA Re-badge like they did later on.

It dates from the mid-late 70's, parts are hard to come by and expensive it seems. Omega do apparently offer re-built stepper-motors--To their dealers only--who will charge £400 to repair the watch, which these days prob isnt worth £100 unless sentimental...

If I was to have pursued this repair myself, I would have considered changing the entire movement for a nice quality recent manufactured one--but which cal, I didn't investigate, as the owner didn't want to spend lots on it..

Posted

thanks for all the thoughts...can anyone point me to some photos or figures showing where I need to test with voltmeter?

 

Posted

I noticed in one of Johns pdf,s there is a re-set mode that increases the voltage but could not see how this is done. If  you can re-set It might be worth a try as it will free the movement up if is just in need of a service. I am not that familiar with quartz apart from a service requirement, it seems to be either the coil or stepper motors that fail. It is rarely the circuit that is at fault.

 

A book worth purchasing if available is "Repairing Quartz Watches" by Henry B. Fried

  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • Welcome to the forum, enjoy. 
    • Yes, the specific old tools do exist, but may be having one is not needed as they are not cheap, and also You will be able to do without it well enough. My advice will be to use regular depthing tool and adjust it for the exact distance between pallet fork and escape wheel bearings from the watch. Then remove the shellac from the pallet that now doesn't pass the ew teeth and move this pallet in. Then put the pallet fork and ew on the depthing tool and check how they lock. They should not lock when the pallet is in, but You will little by little move the pallet out and locking will appear. Then move just an idea out for reliable work and apply shellac, then check if things are still the same. You have to observe where the teeth fall on the pallets - it must be just a little below the edge between impulse and rest planes. Then You must check how everything behaves in the movement This Potence tool is so ingenious, but actually, the traditional way to do the things is much more simple. Arrange the parts not on the pillar plate, but on the cover plate. Only the central wheel will remain on the pillar plate, secured by the cannon pinion.
    • There is a tool that was made for setting up and adjusting escapements of full plate watches.  There were two styles, the picture below shows both of them.  The lower tool held a movement plate and the vertical pointed rods were adjusted to hold the unsupported pivots of the lever and escape wheel.  There was also a version of this tool that had 3 adjustable safety centres so that the balance pivot could be supported by the tool :  The other version I’m aware of is the Boynton’s Escapement Matching and Examining Tool came as a set of two or three clamps that gripped the watch plate and held the safety centres for the pivots : These do turn up on eBay from time to time.  For some escapement work, you can set up the parts in a regular depthing tool, with the centres set according to the distance between the corresponding pivot holes on the movement.  I hope this helps, Mark
    • Once you are aware of the problem, you can adjust as necessary. I have a couple of the Omega 10xx, and they are not my favourites. They seem a bit flimsy and not as solid as previous generation Omega. But I think that's true of a lot of movements from the 70-80s. For me, the 50-60s is the peak in watch movements, where the design criteria was quality, not saving the last penny.
×
×
  • Create New...