chazzbAcrylic is sometimes favorable over normal glass or sapphire because it’s much more shock resistant and scratches can be polished out very easily. Sapphire also doesn’t give that vintage look. Take a look at Omega Speedmasters, they’re offered with both types of crystals.
LOL this comment is like clockwork every time a Max Bill watch drops. Here is my cut and paste response from all the other Max Bill watch drops where this comment is made: This plexiglass vs sapphire has been discussed at nauseam. Sapphire is not expensive. $100 Orient watches even have them. Using Plexiglass is a conscious decision made by the manufacturer in order to properly represent the aesthetics of a domed top as a tribute to the design language of Max Bill, the Bauhaus architect. Sapphire crystal cannot achieve the same domed effect that is needed for this watch without being cost prohibitive and heavy since it would have to be sanded from a solid piece of crystal into the dome shape. Plexiglass also allows the watch to be lighter. You can choose to not buy this watch for whatever reason you want, but you should understand why plexiglass was used.
lassetjusA buddy of mine has this watch and his biggest complaint is that it's full of scratches after 6 months. It's actually difficult (expensive) to create a dome curvature like that with sapphire, but that should have been their choice . Sapphire is simply the only way to go.
As for polishing this watch, do so at your own risk, because the sicralan fucks things up (https://forums.watchuseek.com/f8/do-not-polish-max-bill-crystal-1108610.html).
lassetjusIt is price. ...And arguably resistance to breaking in exchange of resistance to scratching while preserving weight. You can't have the three of them. But personally i like to sacrifice weight instead.
> Sapphire crystal cannot achieve the same domed effect that is needed for this watch
there are several watches (in the similar price range) that does (people like to compare this one to Oris Sixty-Five for example). A crystal is a crystal (or glass, or block of translucent plastic). you remove material from a stock (sand it down) in any shape you want. There is nothing special about the dome effect, other than having to start with a ticker stock and more complex tooling (see, price.). It is not like it is bent in some magical way to "achieve the same domed effect".