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Projects / Re: Service: Omega Seamaster Quartz cal 1342.
« Last post by Lars_london on July 12, 2016, 04:50:32 PM »
Hi there, you won't believe it but still haven't made any progress on this! To be fair, left it parked for a few month…
So finally took it apart completely at the week end. Observed all wheels with magnifier and can't see any obvious damaged parts or dirt.
Brushed wheels with soft toothbrush.
Put it back together. few questions (apologies if they are stupid!):

The step rotor moves back and forth. Is it the way its supposed to work or should it move only in one direction in regular increments?
Still, it doesn't seem to move the other wheels (sweep second and reductions I believe)

Also, one part felt, which I can't locate where it came from… It is a small chrome cylinder, with a little groove right in the middle. I believe it was on the electronic board side.

Thanks
Laurent
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Projects / Service: Zenith XL-Tronic cal. 50.0 (ESA 9162)
« Last post by kanikune on January 26, 2016, 11:03:05 PM »
One of my owns. I got this tuning fork in working condition, but the gold plated crown stripped all the remaining plating off, crystal was scratched and the movement was dirty.


Fullwind to disassembly.


First the regular parts were cleaned in regular cleaning cycle.


And the base plate was assembled. Here the keyless works are getting together. I must say this mechanism is simple but changes date fast. Yoke spring is little bit different from usual.


Keyless works ready.


Other side is quite simple at this point, too. On the centre is the wheel for second hand. The plastic gives drag for the wheel and keeps it in place when the crown is pulled to time setting. I didn't notice to take picture of the train bridge but I'll come back to that soon.


Remaining wheels on the dial side. Date click is still missing from the left side of the date driving wheel.


Date ring back. Date click is attached "permanently" to date cover.


Because of the modularity, Dial and hands can be assembled now and the watch can be cased. New nylon gasket and crystal are in place and new Zenith crown tops it up.


This is how the movement looks in the case at this point. Notice the train bridge is there now.


Tuning fork parts are very delicate and I cleaned them in fresh fluids in ultra sonic.Here the clean tuning forks is attached to the top plate. Only index wheel and 2nd wheel are under the "first train bridge". 2nd wheel connects to the previously assembled base plate and drives the 3rd wheel which is in the centre. Other finger is of course in the tuning fork and the other one is attached to the brass colored plate visible "at 6". That is normally easily adjusted as screw adjusts the tightness and position of the finger.


This is quite simple as after adding the two-piece circuit the unit is ready.


Assembled in the case. Initially the watch runs way too fast, but after adjusting the "finger tightness" the watch starts to keep good time.


Maybe black leather suits this watch.
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Projects / Re: Service: Breitling Shark A53605 Chronograph B53 (ETA 251.262)
« Last post by kanikune on January 03, 2016, 11:05:05 AM »
You can buy this watch now:
http://www.ebay.co.uk/itm/321965150477
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Autowinding Mechanism / Bucherer huolto.
« Last post by thomasooni on December 13, 2015, 11:37:47 AM »
Hei ! Tiedustelisin mitä tulee maksamaan Vintage Bucherer Automatic Chronometer kellon huolto ? Kello käy mutta huoltohistoria ei tiedossa ja jos käyttökelloksi niin huolto välttämätön. ( Vastaus s-postiin.)
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Projects / Service: Breitling Shark A53605 Chronograph B53 (ETA 251.262)
« Last post by kanikune on November 14, 2015, 11:58:10 PM »
I bought this Breitling screaming for a service, because I wanted to get familiar with ETAs premium Quartz chronograph movement, 251.262. Movement works ok mostly, but the chrono minute hand has jammed in the 45 minute position. Also chrono reset button had jammed.


The movement is officially Breitlign B53. Aside normal time setting and chronograph functions movement has hour hand quick set, which also makes the date manipulation faster.


The first great challenge was to loose the chrono pushers. Lot of gunk had built inside and reset button needed light hammering to get out. I don't know if this is duw to over greasing in the past or natural built up due time. The sapphire crystal had also bid dent, so new one was replaced.


Chrono pusher axles take 2 o-rings.


Fullwind to full entropy. On the top right rotors are stuck in the Rodico.


After cleaning keyless works back together.


Assembling the setting lever bridge was little something, as the setting is spring loaded.


On the picture at 12 o'clock date wheel driving wheel. In the center there is two-layered hour wheel. The two layers are separated with mechanical claws that click at 90 degree intervals. This is for the hour hand quick set. I have seen previously this done by magnets in Omega quartz movements.


Now comes the main circuit. Chrono circuit puhers are on the left. (Case pushers have their own return springs). When the circuit pusher is pushed, pusher circuit is closed and function is registered by the logic.


Hacking lever. This has two functions when the crown is pulled to time setting mode. 1st it electrically shuts down the time train and 2nd mechanically holds the time train wheel, so that second hand stays put.


On top of the main circuit comes cover bridge. Also stators, rotors and coils are in place.


Something little different. The white guu is probably silicone and it has vertical thin copper wires inside. The purpose of this block is to connect main circuit to circuit extension. The outer black part holds white part in place.


This movement has following hands on the center. Chrono seconds, chrono minutes, normal hour nad minute hand. So 4 hands stacked. Because of this 3 functions are piled very closely: time train, chrono minute and chrono seconds. Notice the hacking lever sticking out of the cover bridge. Chrono minute driving wheel had long fiber curled around it, which have probably entered the case during battery replacement.


This was not easy task, as there is three wobbly manetic rotors and bunch of wheels that all need to align under this bridge.


Placed succesfully. Here only secured by 2 screws as chrono second wheel & bridge is secured later with two screws.


Here upper small hand drivers.


Chrono second hand wheel & bridge back together.


Circuit extension, which connects stepper motors to main circuit.


On top of aforementioned comes the movement cover.


Dial side of the movement is very simple. Only date wheel with 3 holders are screwed in.


Stacked chrono hands are nice, as the other hides nicely when the chrono is not in operation.


Here chrono is stopped at 3.4 seconds and chrono minute hand is visible.


Now that everything works this is indeed one great watch. The bracelet has safety lock and diver's extension.
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Projects / Re: Service: Omega Seamaster Quartz cal 1342.
« Last post by kanikune on November 13, 2015, 11:40:55 PM »
Yes, parts can be cleaned using lighter fluid. Not recommended to be used in ultrasonics though.
If you are going to clean more watches than this one, you might want to buy cleaning machine. I started with lighter fluid and now I have automatic cleaning machine, agitation based, no ultrasonic and I feel that is sufficient for me.

Most common cleaning machine type is 3 jar system. If you have electrical skills, these are pretty easy to fix, if fix is needed. I would check that all the baskets come along and the jars are intact with lids. At least Elma jars are still available as new.
Old cleaning machines have cleaning basket with only 4 compartments. I have Elma (seen also in this project) and the basket unit has 11 compartments and can take 4 mesh baskets in, which enables to clean most chronographs at once and parts stay in order.
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Projects / Re: Service: Omega Seamaster Quartz cal 1342.
« Last post by Lars_london on November 13, 2015, 12:32:57 PM »
Hi, sorry for late reply.
Thanks a lot for that useful info.
Yes i didn't want to push too much so i've removed the battery until i dismantle the watch/movement.
I'll try and have a go at the week end. Haven't removed hands and dial as yet, just the stem and couple of screws that hold the movement in the case.
Also, I haven't got a cleaning machine. Some people mentioned that parts could be cleaned in lighter fluid (like zippo).
Any advice? Should I buy a cleaning machine? (saw they can go for as little as £20 on ebay but never used one)
Thanks
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Projects / Re: Service: Omega Seamaster Quartz cal 1342.
« Last post by kanikune on November 08, 2015, 02:22:47 PM »
Sounds like safes bet is to disassemble and service the whole movement.

If you look at my initial post, on the 3rd pic, at 6 o'clock on the movement there is small pointy spring. It can be cracked. This returns the crown in normal position after pushing for minute adjustment (and opens circuit). If this spring has cracked, control circuit might be closed all the time causing weird behavior.

Have you removed the hands & dial?

the circuit has trimmer capacitor. It is quite delicate part and I have a feeling that if pushed too much with screw driver, the strcture might suffer and capacitance might drift. This is something I've had in my shoud do list for some time.
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Projects / Re: Omega Seamaster Quartz ref. 196.0150 cal. 1342
« Last post by kanikune on November 08, 2015, 02:14:14 PM »
Can't remember, but after taking out the hands I took out the case clamps which holded the white case ring in place. If there is screws seen on the outer circumference of the movement, then the dial is screw-fit. If there is no screws, then the dial is just pushed into position.
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Projects / Re: Service: Omega Seamaster Quartz cal 1342.
« Last post by Lars_london on November 06, 2015, 06:03:58 PM »
Very good post :-)
As per my other post, I just picked up one of these (This is my first restoration project!)
When picked up, it didn't work at all although there was a battery in it.
I removed the movement from case and with help of tooth pick, pushed the seconds hand gently.
After a few attempts, it started moving although ticking 1 second back and forth. A bit more help and it started moving normally.
I let it run for about 7hrs but it lost about 1h40 along the way.
Also, trying to set the time, the hours and date worked fine but when trying to set minutes by pushing crown, the seconds got stuck after a few rounds. A single push on crown got it moving again but whenever trying to set minutes, the seconds hand gets stuck.
Any ideas what i should look for in particular?
Many thanks

Lars
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