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Lecoultre Memovox K911 Date/Hands/Alarm alignment

Chrono15

By Chrono15
in Watch Repairs Help & Advice

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Chrono15 Member

Chrono15

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Hello all,

 

Decided to start one of my project watches, and all went smoothly up until the final assembly of the dial/alarm disc and hands. 

I cannot for the life of me, get the date to roll over at midnight while also having the alarm aligned with the hands. I can either choose to have the hands align with the calendar flipping at midnight, or align them with the alarm. Otherwise, it flips over at about 2 am. 

 

Any thoughts or advice? IMG_20201027_200623.thumb.jpg.4f1fd26f153fc86d22b69749f818c37c.jpg

nickelsilver Distinguished Member

nickelsilver

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You have a 15 minute window to play with, as you can position the alarm disc in 4 different ways. I move the motion works until the date just starts engaging, then see how long it takes to jump (just set the minute hand in place). I don't recall exactly on this one but probably around 20 minutes. Now get it so the date is about halfway through its change, and set the alarm so that it has just engaged with the hour wheel and observe where the 4 notches are. Most likely you will be pretty close, in the event you aren't, the easiest thing to adjust is the date wheel (the one that advances the date ring). You can move this by a tooth one way or the other to get closer. It's a bit fiddly but not too bad.

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Chrono15 Member

Chrono15

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23 minutes ago, nickelsilver said:

You have a 15 minute window to play with, as you can position the alarm disc in 4 different ways. I move the motion works until the date just starts engaging, then see how long it takes to jump (just set the minute hand in place). I don't recall exactly on this one but probably around 20 minutes. Now get it so the date is about halfway through its change, and set the alarm so that it has just engaged with the hour wheel and observe where the 4 notches are. Most likely you will be pretty close, in the event you aren't, the easiest thing to adjust is the date wheel (the one that advances the date ring). You can move this by a tooth one way or the other to get closer. It's a bit fiddly but not too bad.

Thank you! I'll try this. So to reiterate: get the date flip halfway or so, get the alarm to actuate by using the alarm set crown, and then place the alarm disc?

If I had to guess, the date driving wheel has been messed with before. 

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