Vintage Seiko 5 Sports 6119-6050 'Regatta' Diver

This is a vintage Seiko 5 Sports automatic wristwatch, specifically identified as the 'Regatta' diver, likely from the early 1970s. The watch features a robust, square-shouldered stainless steel case and a distinctive multi-colored rotating inner bezel with teal, blue, and red segments designed for maritime timing. The dark blue dial contains a day-date aperture at the 3 o'clock position, applied stick markers with aged luminous material, and a bright orange second hand for high visibility. Notable markings include the 'Seiko 5' shield, 'Sports' branding, 'Water 70 Resist', and '21 Jewels' notation. Below the 6 o'clock mark, the dial code 'Japan 6119-6050S' is visible. The watch is presented on a period-correct stainless steel link bracelet. Regarding condition, the Hardlex crystal exhibits significant scratching and surface abrasions consistent with heavy use. The stainless steel case and bracelet show numerous fine scratches and scuffs but retain their sharp edges. Critically, the crown is missing from the 4 o'clock recessed position, which is a significant mechanical and aesthetic defect, though the movement is reported to be in working order. The luminous material on the hands and markers has developed a creamy patina typical of aged tritium or early Promethium paint used by Seiko during this era.