Zeno-Watch Basel's new Mystery collection is distinguished by its imposing 48-millimetre case equipped with a notched unidirectional rotating bezel with bolts serving as screws. The dial is characterised by some opaque transparent inserts under which the rotating date and day of the week discs are visible (the display that selects the latter, in various languages, is not visible, while the date display is at 3 o'clock). The movement is the automatic Alfred Schild AS 5006, a 1970s calibre among the last to be produced by the still independent manufacture before merging with ETA in 1978. This historic movement is visible through the sapphire crystal in the case back. It is available in steel, also with black PVD and rose gold inlays. Price: from 798 euros.