Sinn 140/42 Chronograph new likewise housed in a 37

likewise housed in a 37

with a patented chronometer escapement

this particular 3970 is an “E” variant — for étanche

A large domed steel bezel controls an inner timing bezel finished in brushed steel with 12-hour markers and a luminescent arrow to allow for elapsed time measurements

When watches were carried in the pocket

Sinn 140/42 Chronograph new likewise housed in a 37Founder's Select Early Sinn automatic chronographs such as this Ref. 142 are to a certain generation of watch collectors properly reverential. The story of Helmut Sinn's business and designs are the stuff of legend, and its association with the Space Program the thing that gets us all misty. Solid, striking and properly function forward, the 142 is every bit the tool watch that spawned an era of tool watch enthusiasm and inspired the groundswell of