Here's a 1970s classic Sandoz Kelek Chrono...
The star of this show: That amazing turquoise dial with dashboard subdials and red hands. Amazing.
The solid stainless steel case is a hefty 40mm wide, excluding the unsigned crown by 41mm from lug to lug.
The manual wind 17-jewel Valjoux 7733 movement keeps excellent time. One note: The top pusher takes a bit of a hard push, but it works to stop and start the chrono hand.