Very nice patinated SINN 903 from the Helmuth Sinn era.

Lemania cal 1873-24, very similar to the Omega cal. 861. Its perfect visible with the open displayy case back.

This Navigators watch has a nicely aged tritium dial and hands and is in original condition, only the leather bracelet is new vintage looking one with neutral buckle.

I do not have any records of the service history as we buy and sell watches and can onlx offer what the previous owner keeps for us.

The movement is clean and runs at very good rates, our watchmaker timed it recently.