Jules Jurgensen Electronic

[noirrac1j]

Here's one of my favorite watches. It is powered by an ESA 9154 with a Hacking feature and calendar, and this thing keeps time within 3 seconds a day! Its as good as any of my Omega certified chronometers and I got it for about $40...a little maintenance and a new crystal/gasket and here it is!

[bobm12]

Great job and beautiful watch! Nice!

[WillFly]

Got a pic of the movement? Electronic movements are usually quite fascinating.

[noirrac1j]

Yes I have a picture of the movement but not on this computer. The watch has a 13-Jewel transistorized movement that contains a copper coil over which the "conventional" balance wheel (and swiss lever escapement) is impulsed due to the magnetic force created. It ticks at 28,800 bph. I have photos of the movement on my other computer and will put some up later tonight. I have to remember: ALWAYS put pictures of the movement!

 

JC

Edited September 23, 2014 by noirrac1j

[bobm12]

Thank you JC, pictures are greatly appreciated! As Will said, electronic movements are very interesting.

[noirrac1j]

BEFORE the Jurgensen was cleaned-up. Notice the gooey mess of the gasket. I don't have the "after" pictures...I wasn't as keen on documenting stuff as I am now!

 

JC

 

[WillFly]

Thanks - fascinating stuff!

[Geo]

Now that's a piece of history. The only thing that would make it look better would be valves. :-)

[bobm12]

Or dual in line OH cams?! :) Nice movement and out of the ordinary nowadays!

[noirrac1j]

Yes valves! The ESA dynotron wasn't on the scene that long before quartz movements spread themselves everywhere, but the ESA-type electronic movements have proven themselves robust and capable of excellent time-keeping characteristics. Like I said, this little engine keeps time precisely within +/- 3 seconds a day when I compare it to the NIST clocks here in the U.S. Thanks for the replies fellas!

 

 

JC

[dbals]

Super cool!

[Vich]

Really interesting watch and the movement is unlike anything I have seen before.  Cheers  Vic