Olympic Electronic

[anzac1957]

This one arrived today..
 

 

 

 
Any specs or data sheets on this would be appreciated. Might need to do some repairs of circuit in future..

[haloeight]

Looks like a one of those tuning fork/electronic movements.

Back in the 50's,60's,70's a number of Australian watchmaking factories existed around the country. Basically they imported OEM Swiss movements and cases, assembling and dialing them here.

I would say this is probably the same company, and it looks like they are still doing exactly that. They might have a bit more info on your watch.

http://www.olympicwatches.com.au/

I have a Lauris in my collection from the 50's which is an Australian built swiss movement and case. Much like yours, there are very few clues on who the OEM of the movement was.

[anzac1957]

Thanks for the link..

[dutchsiberia]

Looks great! Probably an ESA "dynotron" 9157 or 9158.

http://www.electric-watches.co.uk/type/transistorised_balance/esa.php

I understand the balance pivots are vulnerable to excessive wear when not lubricated properly.

I've got a Rado Newtronic with ESA 9150
http://www.thewatchsite.com/index.php/topic,26478.0.html

[JohnN]

Very cool!   

[anzac1957]

Looks great! Probably an ESA "dynotron" 9157 or 9158.

http://www.electric-watches.co.uk/type/transistorised_balance/esa.php

I understand the balance pivots are vulnerable to excessive wear when not lubricated properly.

I've got a Rado Newtronic with ESA 9150
http://www.thewatchsite.com/index.php/topic,26478.0.html

Looks like 9157 and it has ESA stamped on the movement too..
 
Now if I could find out what those electronic components are..
 
Update.. Just scored a circuit board on eBay from Australia.. 

[dutchsiberia]

is it broken? They should be quite "bullet proof".

[anzac1957]

is it broken? They should be quite "bullet proof".

It was running intermittently.. Thought there was a bad connection in circuit.. Tried soldering iron..     I think I might have accidentally fried a component..

[5seikos]

It was running intermittently.. Thought there was a bad connection in circuit.. Tried soldering iron..     I think I might have accidentally fried a component..

One thing that is easy to overlook in this movement is the stem switch. When I got mine, I serviced it because it was intermittent, after servicing, it still was running erratic, turned out to be the contact that cuts the power to the circuit(activated by the stem being pulled in/out)

Mine is a hamilton, I think I have a caravelle with the same ESA movt.

[anzac1957]

One thing that is easy to overlook in this movement is the stem switch. When I got mine, I serviced it because it was intermittent, after servicing, it still was running erratic, turned out to be the contact that cuts the power to the circuit(activated by the stem being pulled in/out)

Mine is a hamilton, I think I have a caravelle with the same ESA movt.

Thanks.. Will have another look at that too..

[dutchsiberia]

It was running intermittently.. Thought there was a bad connection in circuit.. Tried soldering iron..     I think I might have accidentally fried a component..

"oops"

Be sure to check the balance for wear (the points of the axle) and the balance spring. My Rado was running extremely fast (+10min in one hour)  and after cleaning the balance spring it seems to run fine now.

[anzac1957]

One thing that is easy to overlook in this movement is the stem switch. When I got mine, I serviced it because it was intermittent, after servicing, it still was running erratic, turned out to be the contact that cuts the power to the circuit(activated by the stem being pulled in/out)

Mine is a hamilton, I think I have a caravelle with the same ESA movt.

Had another go at getting it working again.. Looks like it might be the stem switch after all and that I may have been lucky with the electronics block..  I do have another electronic block on the way though..
 
Now have to get a new crystal before I put it back together..

[michael]

Cool watch.Another thing that's cool about this forum from the others.Is that there is much more appreciation for quartz movements.