A. Lange & Söhne

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What type of strap is that?

The strap is all non leather and made from pineapple fabric

Looks great !

Weird and wonderful on both front and back. There is nothing quite like it in the horological word! And, ALS has developed this category of mechanical-digital watches so much, with date/ST/MR complications, I don't see any other brand doing anything in th... 

A grail you might say...