1065 – Intentional hack ?

[CaveDweller]

One thing I’ve noticed since getting this 6605, is that although it is a non-hacking 1065 movement, if you’re careful, it is possible to freeze the second hand. Simply pull the crown out all the way, wind the hands round to where you want them, then turn the crown back just a fraction. The second hand stops in place. When you’re ready to release it, turn the crown forwards (or back) once more, and it runs as expected

I have often wondered if this was intentional by Rolex, or just an accidental quirk of the movement

The watch itself is an early Datejust, circa 1957. 18k, roulette date wheel

[Dan S]

This is possible with many non-hacking movements, especially when the mainspring is low.

[FrenchBigCrown]

Originally Posted by Dan S

This is possible with many non-hacking movements, especially when the mainspring is low.

This ^

I use this method on a couple of 'non-hacking' pieces.

[indianmachine]

naively will ask, could it cause any damage to the movement or no problem?

[CaveDweller]

Dan - thanks for the info

Indian - doubt it very much

[R.W.T.]

This indicates that the cannon pinion is properly adjusted. It will cause no harm to the watch. The cannon pinion "clutches" on the center wheel to allow you to adjust the hands without breaking the watch. It is friction fit. If the cannon pinion is TOO tight this could cause damage but properly adjusted it will stop the watch when moved slightly counterclockwise but before anything goes awry it will slip allowing you to move the hands backward. There is lubrication there to help with the slipping when necessary. It should do this and this is also known as "watchmaker's hack".