Sinn and Isetan Japan (a Japanese Departmental store) has collaborated to launch the Sinn x Isetan Co. Ltd Limited Edition watch. This watch is limited to only 50 pieces. The watch is based on the Sinn 556 model. The design based in the military pilot watch from the 1950s with vintage looking hands and military look dial. The watch offers the following functionalities; hours, minutes, seconds and date complication.

This model is cased in a 38.5 mm diameter stainless steel case with a slim 10 mm case. The lug width is 20 mm and the watch is offered with either a black or brown leather strap. An stainless bracelet is available as an option. The watch has a screw down see through case back where you can view the ETA 2824-2 movement. The crown is also of the screw down design. The watch is fitted with a sapphire crystal and is water resistant to 20 ATM. The watch retails for about $1,900 USD and is available from Isetan Shinjuku (watch section).