Fabulous retro vintage gadget watch by Eugen Gluck New York. Made between 1969 and 1975. San Marino signed dial. Durable 17 Jewel Baumgartner Caliber 582 movement winds, sets and runs but is untested. Service history is unknown. The bottom bezel has a tachymeter readout. The top bezel has a 60 Second/Minute readout and has a manually set month indicator. Dimensions are 40mm w/o crown. 45mm lug to lug. Comes on excellent top grain leather strap.