Birks branded 1953 (from the 37xxxxx serial number) Eterna-matic. It was serviced a few years ago and keeps pretty steady time at -20 seconds per day. The crown, crystal (almost brand new), and second hand are not original, but the watch is in very good condition for its age. Includes a Kings brand leather strap and a NatoStrapCo NATO strap with gold hardware. * Condition: Vintage, good * Movement: Eterna 1416u (I think) * Crystal: Domed Acrylic (I think) * Case: stainless steel, Gold plated front * Dimensions: 14-15mm diameter * Caseback: screw-in, steel * Crown: not screw-down * Strap/bracelet: leather, Nato, both with gold hardware I'm located in Canada. Asking 300$ USD shipped CONUS, or 350$ CAD for a sale within Canada. Also willing to trade for a Moonswatch, or interesting quartz/mecha-quartz chronograph. [watch pics and timestamp](https://www.imgur.com/a/BSYVPc6)