The Ancient Hour
Vintage Seiko Chariot Hi-Beat Tank - 2220-3031 Manual - Roman Numerals
Vintage Seiko Chariot Hi-Beat Tank - 2220-3031 Manual - Roman Numerals
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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
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Reference: 2220-3031
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Year: 1970s
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Movement: Seiko 2220 Hi-Beat, manual wind, 24 jewels, 28,800 bph
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Dial: White with Roman numeral hour markers
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Case: Tank-style stainless steel, slim profile
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Crystal: Hardlex
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Dimensions: 28mm x 32mm case (excluding crown), 37mm lug-to-lug, 7mm thickness
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Lug width: 18mm
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Item Number | |
Bezel Color | |
Movement | 2220-3031 |
Reference Number | |
Band/Strap | |
Vintage | Yes |
Brand | Seiko |
Case Color | |
Department | Men's |
Type | |
Band Color | Black |
Dial Color | White |
Lug Width | 18mm |
Model | Chariot |
Band Width | 18mm |
Case Size | 33mm |
Case Material | Stainless steel |
Country/Region of Manufacture | Japan |
Display | Analog |
Category |







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Has this been authenticated?
All watches at The Ancient Hour are guaranteed authentic by our trusted watchmakers and us. Certificate included!
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Has this been serviced?
All watches at The Ancient hour are professionally serviced before being offered at our shop. Servicing is done by our trusted watchmakers and gone through very capable hands.
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Mechanical guarantee?
Each watch comes with a 1-year mechanical warranty so if anything goes wrong, please let us know immediately.
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Inspection period?
We definitely want you to love your watch, so you always have 14 days to fall in love or return to The Ancient Hour, no questions asked.
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How much is the shipping?
We exclusively deliver worldwide via UPS Courier service which is free for you.
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General care?
Given that most of our watches are around half a century old, they will need to be treated with extra love and care, and they require servicing every 4-5 years.