New vintage Seiko arrival here too! The 7071-6050 Rallymeter. My first Daini-Seikosha (as opposed to Suwa-Seikosha). With its inner rotating scale for calculating rally speeds/distances, and lack of a minute totalizer, it was a quirky alternative to the Suwa 6139/6138 chronographs. This one is from 1971, so 50 years old...YaY!