Jaeger-LeCoultre Futurematic: Unraveling its Clever Automatic-Only Movement
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Jaeger-LeCoultre Futurematic: Unraveling its Clever Automatic-Only Movement

By COUNT DE MONET · Feb 3, 2020 · 44 replies
COUNT DE MONET
WPS member · Jaeger-LeCoultre forum
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COUNT DE MONET's recent acquisition of a Jaeger-LeCoultre Futurematic highlights the enduring fascination with this technically innovative vintage timepiece. His initial bewilderment over its unique winding mechanism underscores why the Futurematic remains a captivating subject for collectors, prompting a deeper dive into its clever engineering and operational nuances. This article explores the watch's distinctive features and the community's shared insights into its design.

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Held it quite puzzled for a moment in my hand, when I decided to put this one on and scratched my head ... how did it work again? How do I pre-wind it manually??? Looking at the back at the crown I was thinking: Was the crown in the back for winding? ... noooo. I remember it was for setting ... hhhmmmm? The watch never runs down fully, I know, ... sooo ... and when turning the dial of the watch up again the penny dropped: it is already running! I just need to set the time! 😥😀



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CO
COUNT DE MONET
Feb 3, 2020

... but not for manual winding

XY
xyz123abc
Feb 3, 2020

So when you put it back on, it will have a certain power reserve to get you going.

CO
COUNT DE MONET
Feb 3, 2020

I have got pictures from the hoock that is catching the rotor, to end the automatic winding, but I could not find any pictures from the parts that bring the movement to a premature hold. Have you got any pictures or do you know about an article that is showing It?

CO
COUNT DE MONET
Feb 3, 2020

I think this JL offers quite a lot. Whising you also a good time in good health.

XY
xyz123abc
Feb 3, 2020

The mainspring in the barrel is pre-tensioned. As this watch doesn’t have a manual wind, the engineers thought it would be a good idea to leave a residual tension in the mainspring, so that the watch will start up instantly when slightly wound by the auto winder. Good thinking, but yet another complication. Once the mainspring is pre-wound by 1 1/2 turns, two little screws are put into the centre plate. This plate rides up as there is a thread in the middle when the mainspring is wound. This se

CO
COUNT DE MONET
Feb 3, 2020

I came across this article. I found also a German watchmaker's article, who showed pictures of tge movement whilst servicing a Futurematic. I saw pictures of the movement parts you have quoted. The stop at the top end of winding is clear to me but not the stop of unwinding and the mechanism (a break of some kind), that lets the movement run again.

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