Seiko - SilverWave Quartz Screw-Down Crown - 7546-8010

This exceptionally historic sport-dress instrument is a highly coveted vintage artifact from February 1978, as definitively proven by the serial number 823316 stamped on the solid stainless steel screw-down caseback alongside the raised iconic SilverWave double tsunami wave medallion. Preceding the modern diver lineage, Seiko’s legendary SilverWave line was engineered as the brand’s robust water-resistant sports series. It houses the heavy-duty Seiko Caliber 7546 quartz movement, a fully jeweled, high-torque technical workhorse derived from the mechanical 6309 architecture and admired by horology purists for its serviceable metal gear train and rock-solid dependability.

The case architecture features a classic Tanaka "Grammar of Design" stainless steel profile with sharp angled lugs, a polished bezel ring, and a rugged screw-down crown positioned at 4 o'clock for ergonomic wrist comfort. The dial is a masterclass in vintage minimalism, displaying a pristine matte white face adorned with applied faceted steel baton indices, black-accented pencil hands, a framed Kanji/English day-date calendar window at 3 o'clock, and the distinctive applied SilverWave logo at 6 o'clock. Completed on a classic stainless steel Jubilee-style link bracelet, this daily driver blends rugged Japanese utility.