SINN 140b with LEMANIA 5100

SINN 140b with LEMANIA 5100. The watch is one of the very first build by SINN, having the swing, fine line S on the dial, the Lemania 5100 movement, a serial number without a S in front of the numbet and of course a very early movement number. Bracelet is of later date. Comes with 1st generation Box & original manual - big size DIN A4. An ultra rare watch for SINN collectors.