This timepiece is a magnificent artifact from December 1981, as confirmed by the serial number 1D0199 stamped on the caseback. in  As an enthusiast who loves to sell the customer on points they might not even know they want, you should highlight the case material. The case is marked "NSAG" (Suwa Nitride Surface Treatment / Hard Alloy), a professional-grade engineering marvel from Seiko's early '80s labs designed to be incredibly scratch-resistant, allowing the geometric lines to remain razor-sharp for decades.

The architecture is outstanding, featuring a sleek rectangular tank case flanking a deep pitch-black dial adorned with gilt Roman numeral indices. . Its technical soul is powered by the robust Caliber 6030 quartz movement, which delivers premium accuracy in an ultra-slim form factor. To complete the "Dark Luxury" look, the watch features an exquisite, dark cabochon onyx crown. Paired with its original, tightly woven mesh integrated bracelet, this Japanese Domestic Market (JDM) dress watch offers an undeniable presence of classic wealth and understated power.