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I went for the sapphire because I wanted the see-through caseback (it’s quite a pretty movement), and because I feel a €5000 luxury watch shouldn’t have a cheap-o plastic crystal.
I wouldn’t call it a cheap-o crystal. The hesalite crystal will last as long as the sapphire crystal. It will scratch, but unlike sapphire, it won’t shatter. It’s simply a matter of personal preference.
I am thinking of buying a Speedmaster Moon. I understand that the most pure descendant in modern times is the 311.30.42.30.01.005.
What stops me from getting it is the plexi (or is it hesalite?), because I just I'll end up scratching it, and I don't have a AD's close by to polish it for me.
Then I found out about the 311.30.42.30.01.006 - all in all the same watch, but with sapphire glass, and see-through back. Are there any real negatives with the .006? Sapphire would take off one of the big negatives for me, but then again I really want the closest to a true "Moon".
Practically, I want the Mark II, but that's a whole different story! ;-)
I would love to know which is the most popular of the two. I would imagine the sapphire sandwich.
people talk about shattering sapphire as if that actually happens. It takes serious tools (and intent) to shatter a sapphire crystal. It’s a ridiculously durable material.
people talk about shattering sapphire as if that actually happens. It takes serious tools (and intent) to shatter a sapphire crystal. It’s a ridiculously durable material.



Damage to sapphire is fairly common...of course shattering can happen simply by dropping the watch:
Not my photos, but ones that have come up that I saved for claims such as yours, to illustrate that it can and does happen.
What's more common are chips...
And on top of this, it scratches as well. I get watches in regularly with sapphire crystals that are scratched, and in those cases trying to polish it out is a very long and drawn out (expensive) process using diamond pastes, so typically replacement is the only reasonable option. Some crystals are not bad, but if you have to replace a sapphire crystal on a Speedmaster, it will nearly double the cost of a normal service.
There are pros and cons to both materials.
...hopefully there's a little more to be had when I'm there waving a credit card.
It's been my experience that cash is best for getting the very best deal. Credit Cards have a user fee the shop must pay, of around 3%, so it costs them more money to accept a card, but of course this is built-in to pricing. using cash they can also report whatever amount they choose, so they can make a bit more on the books if that's how they choose to operate. On occasions where I didn't have cash on me and had to use a card, I simply negotiated the best deal and then offered to eat the 3% by having them add that on top.
It may not matter for this, but the bigger the purchase the more that 3% adds up. I've bought cars on credit cards before.
people talk about shattering sapphire as if that actually happens. It takes serious tools (and intent) to shatter a sapphire crystal. It’s a ridiculously durable material.
Interesting. Do you think that is because it's the 'enthusiasts choice' ?
Interesting - I actually find the acrylic crystal to be much clearer...less reflective.
I think the warmth and the distortion created by the hesalite better suits the vintage aesthetic of the watch, but that's purely my opinion.