The Behrens x Konstantin Chaykin Limited Edition Prototype #0 Black (ref. BHR028T) is a men's watch with a 42 mm case in titanium. The dial is protected by sapphire crystal.
It is powered by a self-winding mechanical movement with a power reserve of up to 42 hours. Water-resistant to 30 m. The watch is fitted with a rubber strap.
This example is brand new, dated 2023, and comes with the original box and papers.