Vintage Seiko Chariot – Ref. 2220-3031 – Hi-Beat Tank – Roman Numerals

This Seiko Chariot 2220-3031 is a refined vintage dress watch that showcases Seiko’s craftsmanship of the mid-1970s. Powered by the 2220 manual-wind movement, it beats at an impressive 28,800 bph (Hi-Beat), offering smooth timekeeping and precision in an ultra-slim profile.

The design is heavily inspired by classic tank-style watches, with sharp rectangular case lines that wear elegantly on the wrist. Its crisp white dial features Roman numeral hour markers, adding timeless sophistication and a distinctly formal look. Slim, elegant, and reliable, the Chariot Hi-Beat Tank remains one of Seiko’s finest vintage dress offerings.

Features & Measurements

• Reference: 2220-3031
• Year: 1970s
• Movement: Seiko 2220 Hi-Beat, manual wind, 24 jewels, 28,800 bph
• Dial: White with Roman numeral hour markers
• Case: Tank-style stainless steel, slim profile
• Crystal: Hardlex
• Dimensions: 28mm x 32mm case (excluding crown), 37mm lug-to-lug, 7mm thickness
• Lug width: 18mm