Replacing crystal on a Sub

[ryaku]

I'm creating a new watch and i was wondering if i can have some problem to replace the crystal on my incoming Vintage 5517.

I'd like to replace the replica crystal with a domed sapphire crystal (i'm creating an homage so accuracy is not an issue).

Do you think it might be tricky?

Similar watch:

Any tip appreciated

R.

[ubiquitous]

Ryaku-

Anything should be possible with the right size crystal and gaskets

[ryaku]

Ubi, thanks, that's reassuring.

Project 's gonna start shortly now.

As you well know the main concern is sourcing a good sterile dial.

[Dizzy]

You're not going to be able to do a sapphire crystal but you can go with the factory size T-19 dome acrylic crystal. There are conversion kits out there to put a saphire on that old style case but i have never seen the results, not to mention it issue of water resistance.

[ryaku]

Ok, one more question.

Do you guys think it would be easier to buy a noobmariner replacing the bezel with a bezel from a vintage model?

Would it be possible in your opinion or cases have completely different measures?

In that case i would have a sapphire crystal by default.

Thanks again

Edited May 30, 2010 by ryaku

[ubiquitous]

Ryaku,

The diameters of a vintage and modern Sub (more specifically acrylic vs. sapphire) are completely different. The modern sapphire crystals are significantly larger in diameter, so it's not simply a matter of exchange from one to the other.

Rather, if you have a sapphire crystal of the same diameter as the acrylic along with a corresponding gasket of correct diameter and height, thickness etc, the sapphire could be a direct replacement. But it all depends on whether you can find a sapphire crystal of the correct size.

[ubiquitous]

BTW, the fundamental construction between a gen 16610/16800 and 1680 are more or less the same; you have a crystal that seats to the rehaut lip (either with the entire crystal as would the case with an acrylic, or with the gasket and sapphire) and then you have a retention ring that seats over the crystal or the gasket. So, keep in mind that the new sapphire crystal should also have a small channel on the underside to seat with the gasket. However, with these factors in mind, you should have a decent, water resistant retrofit

May be worth checking with some of the crystal suppliers like GS, or watch supply houses to see if they have something in stock that might work...

[ryaku]

Ubi thanks for the heads-up and patience, it's not a secret i don't know anything about rolex (nor modern nor vintage models).

I'll try to keep a non-sapphire glass , i'm afraid i cannot stand too much reflexes now i'm addicted to IWC AR crystals.

Maybe i'll change my mind and i'll fall in love with acrylic glasses. It's worth trying, i really love the look of vintage rollies.