Vintage Seiko 5 37mm 6309-8150 from 1980 – ALATO Klockor
Seiko 5 Sports Field Watch Review: Can It Live Up to Its Lineage?
SNK375K1] Seiko 5 automatic 37mm Arabic day date. eBay steal. My other watches including my hydro conquest have always been 40/41mm. Weird having a smaller face but makes a great little rugged