This timepiece is a magnificent artifact from October 1975, as confirmed by the serial number 503260. The Lord Matic series is defined by its sophisticated stainless steel case and a breathtaking charcoal black dial that offers a deep, tuxedo-like contrast against the polished silver indices. It is powered by the legendary 23-Jewel Caliber 5606, a high-end mechanical movement engineered with both hacking and hand-winding capabilities, ensuring a sweep second hand that glides with buttery smoothness across the dial’s minimalist landscape.

The architecture is quintessentially sharp, utilizing a robust unibody-style case construction and the iconic integrated-style lugs that provide a seamless transition to the bracelet. The dial is a work of high-end JDM art, featuring hand-applied baton indices, the proud "LM" logo, and a dual Kanji/English day-date wheel, a signature of its exclusive Japanese domestic heritage. Flipping the watch over reveals the crisp caseback engravings and the Suwa Seikosha factory symbol, definitively confirming its authentic Japanese Domestic Market (JDM) pedigree. This is an essential acquisition for an elite collector who appreciates Japanese industrial design, the mechanical soul of a 23-jewel heart, and the bold, shimmering presence of a vintage Lord Matic.