A Servicing Quandary

[Kingface66]

Hey Guys,
My '66 Sub has developed a loose crown over the last few months. It sets the hands without any problem, but the winding seems to not "catch" that well when turning. Some turns are fine, some seem as though it's not catching the teeth of the gears (if that makes sense). But, when pulled all the way out, it also jiggles a lot and is definitely looser than it should be.

Last week, a collector friend brought me to the new Analog Shift space (which is very cool!) up in midtown. There, I had the watch with me. The fellas there suggested bringing it to Central Watch in Grand Central Terminal. They also mentioned that there was possibility they might want to replace the crown, or at least the tube, etc...or out could be a simple adjustment. That sounded fine to me.

Quick background: When I bought the watch from Philippe Capurro, from Exotic Watches, a few years ago, it arrived with this card, claiming it was serviced by Rolex in 2013.

I just now received the estimate from Central Watch, which read, in part:

"...it requires a complete service which includes the following repairs:

* Complete disassembly of all parts of the movement
* All pivots and wheels are polished by hand
* Ultrasonic cleaning of movement
* Replace worn movement parts
* New mainspring
* New crystal
* Reseal watch
* New crown
* New case tube
* New gaskets
* Ultrasonic clean the case (No extra charge)

The cost of the repair will be $1350 plus tax

(By the way, the crystal on the watch now is purported to be original, which I would hate to replace).

Thoughts, or advice on how to proceed?