Do I need a new stem to fit a Datejust crown to a Val. 72 movement?

[Martyd3]

What stem do I need and where can I find one?

Thanks.

Marty

[freddy333]

The stem should fit just about any Rolex crown. But you need to match the crown to the model of watch, not the movement.

[alligoat]

The 24-602-0 crown will work (or the old 600, I believe), but the newer 603 crown takes the the smaller case tube- the 5mm one, if I'm not mistaken. Threads should be the same. But some of the old V72 movements used a different stem which might not fit the Rolex crown threads. As I recall, its the tap 10 size stem you need.

[automatico]

quote =

What stem do I need and where can I find one?

/quote

Some V72 movements have tap 10 stem threads (.9mm, same as a modern rolex crown) and some have tap 9 (1.0mm, too big for a modern rolex crown).

Make sure your V72 stem has tap 10 threads, if it is tap 9, you will need a new stem.

note:

Sometimes you will see a tap 9 stem with a sharpened tip and it might start in a tap 10 crown but will seize up, break, or split the crown post.

You can order a tap 10 threaded V72 stem from a supply house and it would probably be a good idea to get a couple extras while you are at it.