You are holding a rare and refined piece from Seiko's pursuit of ultra-thin watchmaking. This Seiko Chariot, reference 2220-0260, is built around the highly esteemed Caliber 2220, a tiny, hand-wound movement notable for two major achievements:
Ultra-Thin Profile: The movement is only 3.3mm thick, which allowed the entire watch to have a beautifully slim profile, perfectly capturing the elegance of a classic dress watch.
Hi-Beat Rate: Despite its small size, the Caliber 2220 operates at a high frequency of $28,800 \text{ beats per hour (bph)}$, a feature usually reserved for larger, high-end movements like the King Seiko and Grand Seiko, ensuring superior accuracy.
The design is classic 1970s elegance. The polished, cushion-shaped stainless steel case frames an uncluttered black sunburst dial with simple applied indices and no seconds hand, which enhances the dial's clean, minimalist aesthetic. The simple two-hand display and manual-wind operation appeal to the purist collector who appreciates the intimate interaction of winding a finely made machine every day.
The case back confirms the reference and its JDM (Japanese Domestic Market) origin. Watches from the Chariot line are particularly collectible as they represent the final stage of Seiko's dedication to high-beat, ultra-thin mechanical movements before the full impact of the Quartz Crisis.
