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Questions tagged [watch]

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Watches: screw-down crown, gaskets, and what else?

I recently learned that some watches have a "screw-down crown", which to my understanding is made with a threaded crown stem that tightens into a threaded watch case. This seems ...
H2ONaCl's user avatar
  • 109
-1 votes
1 answer
57 views

how to let a needle move in positv roation and then a negativ rotaiton then it should loops [duplicate]

i am trying to make a watch that looks like the speedometer from merceds benz AMG my problem is i canot figure out how to let the needle or the minute hand (call it what ever you want) rotate from 0 ...
ABO M7TRAF's user avatar
-1 votes
1 answer
143 views

How can I make a needle to turn slowly CW to the final position, then return quickly CCW back to the initial position and to start again turning CW?

What I want is after the needle reaches 60 it should go back to 0 in the way showed in the image The mechanism should preferably be based on gears which convert a steady continuous rotation to the ...
ABO M7TRAF's user avatar
0 votes
1 answer
82 views

How to regulate the RPM of a mainspring powered gear without an escapement?

I am building a watch and want to include a mechanism, where, upon the press of a button, the mainspring releases its energy causing the music box to play. Traditionally, the music box does not allow ...
keencreator's user avatar
0 votes
1 answer
262 views

How is energy in the hairspring restored in a mechanical watch?

I've read through the excellent guide to how mechanical watches work by Ciechanowski, but it leaves some questions unanswered. The main spring of the watch, when it loses energy, can of course be re-...
Eugene Osovetsky's user avatar
1 vote
2 answers
415 views

What happens to a mechanical watch when the stem is fully pulled out?

Related to the question: Why would anyone “pull the stem out and stop the wristwatch at night or when not wearing it” in the context of mechanical watches? When the stem of either a mechanical wrist ...
Fred's user avatar
  • 9,702
1 vote
1 answer
138 views

Why would anyone "pull the stem out and stop the wristwatch at night or when not wearing it" in the context of mechanical watches?

I read this the other day while discussing mechanical pocket and wrist watches: Plus it is common practice to pull the stem out and stop the wristwatch at night or when not wearing it. You then have ...
Kaz's user avatar
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0 votes
1 answer
120 views

How can (many) mechanical watches keep track of the current day of the month when these vary so much over months and years?

Having dealt with dates and time in programming context for many years, I have realized what a nightmare our common calendars are, and how much they vary by the year/month/etc. Yet there are fully ...
Dhairya W's user avatar
1 vote
1 answer
80 views

Do really "all mechanical watches need to be maintained properly"?

Somebody answered this on a different question: All mechanical watches need to be maintained properly. Every year or two they should be taken to a watchmaker for a service. This will include ...
Lenny's user avatar
  • 21
0 votes
3 answers
839 views

Are mechanical pocket watches inherently water-proof and last "forever"?

Recently, I bought a cheap (~$53) but elegant mechanical "retro pocket watch", newly made. That is, not an antique made in the 18th century or anything. So far, it's worked flawlessly and ...
Legennd D.'s user avatar
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2 answers
466 views

How can a mechanical pocket watch wind itself from movement, and does it really get damaged if wound "too much"?

Today I received the mechanical pocket watch that I had recently ordered. It was this one: https://www.trendhim.se/guldfargat-mekaniskt-retro-fickur-p.html#full-gallery I find it extremely fascinating ...
Micharl's user avatar
2 votes
0 answers
72 views

Lowest temperature at which a spring powered mechanical wrist or pocket watch will stop operating

In the Wired article 9 Russian Adventurers Mysteriously Froze to Death. A New Theory Explains Why, it is stated that: Without body heat to keep it warm, in such cold weather—estimated to be –13 ...
Fred's user avatar
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