I have been “eyeing” this piece for a couple years now; specifically looking for the earlier references with 10:00 pusher. When you push the actuator, all day, date, moonphase stay in sync. This allows you to set the watch down and pick it up later (after power reserve has depleted) and not have to use stylus to reset (once you initially set).
Note, all Langematik Perpetual have this function, but newer ones require a stylus, as they removed the 10:00 pusher!
I chose platinum, but Craig’s and Watchlovers in the warmer metals look really nice and provide a good contrast.
I like the colder look, maybe I can get more dairing with the strap pairing. And of course it matches my platinum 39mm Datograph.