Winding turn question. What exactly is a turn?

[mountainjogger]

Ok. Let me get it over with and apologize in advance for my ignorance.

But I always wondered what is a full turn for winding purposes?

Was giving my Sub C 40 turns for a reserve test the other day and realized... why don't I ask the forum

Best I can figure a thumb turn is actually 1/2 of a turn of the circumference. So, is it 40 half turns, or 80 half turns in order to wind it 40 turns for a full charge? Try saying that fast three times in a row.

Thanks in advance for the answers.

[Bybybmw]

Originally Posted by mountainjogger

Ok. Let me get it over with and apologize in advance for my ignorance.

But I always wondered what is a full turn for winding purposes?

Was giving my Sub C 40 turns for a reserve test the other day and realized... why don't I ask the forum

Best I can figure a thumb turn is actually 1/2 of a turn of the circumference. So, is it 40 half turns, or 80 half turns in order to wind it 40 turns for a full charge? Try saying that fast three times in a row.

Thanks in advance for the answers.

My AD offered the following, it used to be 20 turns according to Rolex. But then they realized that folks just do half turns as you mentioned so they upped the "turns" to 40 which would give you a full 20 turns.
Take that for whatever.

[Rolexoman]

When I do a reserve test on a automatic I just turn until I feel it slip in the barrel, I don’t think you can over wind, but as far as turns it’s just one full turn of the crown which honestly is not much so when I start out for the week with a unwound watch I just guess and do like 50 turns and the 50 turns are a guess

[mountainjogger]

Originally Posted by Bybybmw

My AD offered the following, it used to be 20 turns according to Rolex. But then they realized that folks just do half turns as you mentioned so they upped the "turns" to 40 which would give you a full 20 turns.
Take that for whatever.

Thanks.

[mountainjogger]

Originally Posted by Rolexoman

When I do a reserve test on a automatic I just turn until I feel it slip in the barrel, I don’t think you can over wind

Yup. That is what I have done in the past. But still curious if there is an expert opinion on whether it is 40 full or 40 half winds. Thanks.

[Nikrnic]

Put your crown up and give your normal turn then look, mine IS one full turn. If your a fast winder you'll probably get a 3/4 turn.

Sent from my SM-G970U using Tapatalk

[padi56]

Originally Posted by mountainjogger

Ok. Let me get it over with and apologize in advance for my ignorance.

But I always wondered what is a full turn for winding purposes?

Was giving my Sub C 40 turns for a reserve test the other day and realized... why don't I ask the forum

Best I can figure a thumb turn is actually 1/2 of a turn of the circumference. So, is it 40 half turns, or 80 half turns in order to wind it 40 turns for a full charge? Try saying that fast three times in a row.

Thanks in advance for the answers.

Full turns are exactly what it means full 360 degree turns clockwise only, as they only wind on the forward wind.

[mountainjogger]

Originally Posted by padi56

Full turns are exactly what it means full 360 degree turns clockwise only, as they only wind on the forward wind.

Thanks Padi. Exactly the answer I was looking for.

[brandrea]

Originally Posted by padi56

Full turns are exactly what it means full 360 degree turns clockwise only, as they only wind on the forward wind.

[Dsmith1974]

360 degrees. I just give it 50 whatever winds which is always sufficient.

[schoolboy]

Originally Posted by Rolexoman

When I do a reserve test on a automatic I just turn until I feel it slip in the barrel...

I have heard of this, but honestly don’t know what it feels like.

Is there any chance that you can describe this feeling?

My AD tells me that you can HEAR the mainspring slide on the barrel, Ive tried listening for it but can’t ever hear a difference when I’m winding

[Brny11]

I’ve got no input lol but this is a great thread! I’ve always wondered myself!

[brucethemanlee]

i just give it a 100 "turns" or "thumb turns".... whatever that means.

i figure 100 of anything should be sufficient for full "charge"

[Tools]

Originally Posted by mountainjogger

. . .
Best I can figure a thumb turn is actually 1/2 of a turn of the circumference. So, is it 40 half turns, or 80 half turns in order to wind it 40 turns for a full charge? Try saying that fast three times in a row.

Thanks in advance for the answers.

I've just conducted scientific experiments with several watches and thumb-finger winding techniques.

It appears that, with typical finger motion, the crown does, indeed, almost make a complete 360 degree rotation, unless the winder is somewhat timid.

Experiments were conducted using both the back-and-forth winding motion, and the preferred individual forward winding motions.

(I believe the AD with the 20-turn to 40-turn hypothesis is a load of farm fertilizer)

[gunhose]

lol

[Muxi]

Originally Posted by schoolboy

I have heard of this, but honestly don’t know what it feels like.

Is there any chance that you can describe this feeling?

My AD tells me that you can HEAR the mainspring slide on the barrel, Ive tried listening for it but can’t ever hear a difference when I’m winding

It feels a little gritty.

[padi56]

Originally Posted by Muxi

It feels a little gritty.

Possible all that happens when mainspring is fully wound it just slips in the spring-barrel.

[Easy E]

I want to say I have read in one of my owner’s manual that the stated spec is 20, but as mentioned above that 20 is full 360. The 40 turns is based on a thumb turn only going half way.

[Fire bloke]

Look at the top of the Rolex coronet crown
Rotate clockwise then it's 90 degrees to a quarter turn
180 degrees to a half turn
360 degrees to a full turn
3600 degrees to 10 turns
7200 to a fully wound watch or 20 full turns

If you do half turns it's still 7200 degrees to full wind
Unless of course it had still had power left in it, then it will be
A - B = 7200 full wind
Where A is number of turns to full wind less power reserve in turns.. easy when explained
Easy

[padi56]

Originally Posted by Easy E

I want to say I have read in one of my owner’s manual that the stated spec is 20, but as mentioned above that 20 is full 360. The 40 turns is based on a thumb turn only going half way.

Yes 20 full crown turns will start the movement from stopped, but it will need 40 plus full crown turns to fully wind.