What happen if Over wind for more than 40 times???

[Daniel Tan]

I wonder it is advice to wind up 40 turns of the crown once a month for those automatic Rolex without wearing for certain period one... Sometime, when we mis calculate and accidentally over wind more than 40 times (say example 60 turn and above... ) what will happen? Will it Broken? Or the crown will stop & cannot be winded once reach 40 turns ?

[A.Sharp]

Don't know for sure, but I was told by a friend that there is a mechanism in rolex's that protect them from being damaged when over wound.

[kilyung]

You can't overwind an automatic Rolex.

[moviefreak]

with a hair dryer???

[sleddog]

No problems with over-winding on all modern Rolex models.
There is a clutch mechanism to prevent such a thing from happening.....Once your mainspring has reached it's optimal torque, further winding will slip and no longer place any further tension to the mainspring...

[Hairdude1]

You are fine!

[oneillba]

No worries. It has a clutch to prevent over winding.

[kilyung]

Excerpt from Wiki:

The 'slipping mainspring' device was patented by Adrien Philippe, founder of Patek Philippe, on 16 June 1863,[3] long before self-winding watches. It was invented to allow simultaneous winding of two mainspring barrels. In an ordinary watch mainspring barrel, the outer end of the spiral mainspring is attached to the inside of the barrel. In the slipping barrel, the mainspring is attached to a circular steel expansion spring, often called the 'bridle', which presses against the inside wall of the barrel, which has serrations or notches to hold it.[4]

As long as the mainspring is less than fully wound, the bridle holds the mainspring by friction to the barrel wall, allowing the mainspring to be wound. When the mainspring reaches full wind, its force is stronger than the bridle spring, and further winding pulls the bridle loose from the notches and it simply slides along the wall, preventing the mainspring from being wound further. The bridle must grip the barrel wall with just the right force to allow the mainspring to wind fully but not overwind. If it grips too loosely, the bridle will begin to slip before the mainspring is fully wound, a defect known as 'mainspring creep' which results in a shortened reserve power time.[5]

A further advantage of this device is that the mainspring cannot be broken by excessive manual winding. This feature is sometimes described by watch companies as involving an "unbreakable mainspring".

[zhiunit]

absolutely nothing

[dddrees]

Originally Posted by kilyung

Excerpt from Wiki:

The 'slipping mainspring' device was patented by Adrien Philippe, founder of Patek Philippe, on 16 June 1863,[3] long before self-winding watches. It was invented to allow simultaneous winding of two mainspring barrels. In an ordinary watch mainspring barrel, the outer end of the spiral mainspring is attached to the inside of the barrel. In the slipping barrel, the mainspring is attached to a circular steel expansion spring, often called the 'bridle', which presses against the inside wall of the barrel, which has serrations or notches to hold it.[4]

As long as the mainspring is less than fully wound, the bridle holds the mainspring by friction to the barrel wall, allowing the mainspring to be wound. When the mainspring reaches full wind, its force is stronger than the bridle spring, and further winding pulls the bridle loose from the notches and it simply slides along the wall, preventing the mainspring from being wound further. The bridle must grip the barrel wall with just the right force to allow the mainspring to wind fully but not overwind. If it grips too loosely, the bridle will begin to slip before the mainspring is fully wound, a defect known as 'mainspring creep' which results in a shortened reserve power time.[5]

A further advantage of this device is that the mainspring cannot be broken by excessive manual winding. This feature is sometimes described by watch companies as involving an "unbreakable mainspring".

Very informative, thanks for posting Mike.

[Daniel Tan]

Thanks for all of here to provide the above info... Thanks^^

[SkyKing31]

Thats the beauty of a self winding watch

[Speed]

Your watch EXPLODES!

[hdrazor251]

On the 40th wind you have to mail it to me.

[kymwatchlog]

stand far far way when u do that cos the dial will pop out!!

j/k..

i don't think anything will happen though.

[padi56]

Originally Posted by kilyung

Excerpt from Wiki:

The 'slipping mainspring' device was patented by Adrien Philippe, founder of Patek Philippe, on 16 June 1863,[3] long before self-winding watches. It was invented to allow simultaneous winding of two mainspring barrels. In an ordinary watch mainspring barrel, the outer end of the spiral mainspring is attached to the inside of the barrel. In the slipping barrel, the mainspring is attached to a circular steel expansion spring, often called the 'bridle', which presses against the inside wall of the barrel, which has serrations or notches to hold it.[4]

As long as the mainspring is less than fully wound, the bridle holds the mainspring by friction to the barrel wall, allowing the mainspring to be wound. When the mainspring reaches full wind, its force is stronger than the bridle spring, and further winding pulls the bridle loose from the notches and it simply slides along the wall, preventing the mainspring from being wound further. The bridle must grip the barrel wall with just the right force to allow the mainspring to wind fully but not overwind. If it grips too loosely, the bridle will begin to slip before the mainspring is fully wound, a defect known as 'mainspring creep' which results in a shortened reserve power time.[5]

A further advantage of this device is that the mainspring cannot be broken by excessive manual winding. This feature is sometimes described by watch companies as involving an "unbreakable mainspring".

X2 Fact most of the TRF members worry too much about there watches.Fact Rolex watches are one of the toughest MECHANICAL watches made to day on this planet.And with just a little care keep clean etc and just with normal routine service they are good for 50 years reliable timekeeping.