Seiko - Quartz QR Early Battery Hatch - 3862-7020
Seiko - Quartz QR Early Battery Hatch - 3862-7020
Cal. 3862 - Early High-End Quartz - External Battery Hatch & Applied Honeycomb QR Logo - April 1974 JDM
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This exceptionally historic executive instrument is a museum-grade vintage artifact from April 1974, as definitively verified by the serial number 442027 stamped across the solid stainless steel caseback. Produced in the earliest golden dawn of the quartz revolution following the Astron 35SQ, the Seiko 38QR series represented the absolute frontier of luxury and cutting-edge Japanese micro-engineering. It houses the celebrated, hand-assembled Seiko Caliber 3862 quartz movement from the Suwa division, a high-grade technical marvel constructed with heavy-duty metal bridges, jeweled gearing, and an iconic external coin-slot battery hatch for effortless servicing.
The case architecture features a classic Tanaka "Grammar of Design" stainless steel profile defined by sharp brushed lug surfaces, mirror-polished chamfers, and an ergonomic case profile. The dial is a masterclass in clean 1970s minimalism, displaying a bright silvery-white sunburst face adorned with applied faceted steel baton indices with black contrast inlays, matching pencil hands, a framed quickset date window at 3 o'clock, and the applied stylized QR honeycomb single-quartz crystal logo above 6 o'clock. Completed on a supple cognac tan croc-grain leather strap, this historic JDM reference brings elite pioneer quartz pedigree to any fine collection.
| Feature | Specification |
|---|---|
| Brand | Seiko |
| Model | Quartz QR |
| Reference | 3862-7020 |
| Year | April 1974 JDM |
| Material | Stainless Steel |
| Winding | High-Grade Precision Quartz |
| Caliber | Seiko 3862 (Suwa Seikosha) |
| Serial | 442027 |
| SKU | AB |
| Dial | Silvery-White Sunburst with Applied QR Logo |
| Caseback | Solid Screw-Down with External Battery Hatch |
| Date | Quickset Date Aperture at 3 O'Clock |
| Case Size | Approx. 36mm - 37mm (Excluding Crown) |
| Service | Movement Inspected & Battery Tested |
| Strap | Premium Cognac Tan Croc-Grain Leather Strap |
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