This custom-built "Seiko Mod" is a masterclass in understated elegance, channeling the prestigious aesthetic of a classic Day-Date "President" timepiece. The watch features a deep, ink-black dial that provides a high-contrast backdrop for the polished silver-toned baton markers and hands, creating a sharp and legible luxury look. Encased in surgical-grade 316L stainless steel, it is defined by its iconic fluted bezel which captures light with every movement of the wrist. The ensemble is paired with a matching three-link Presidential-style bracelet, known for its balanced weight and sophisticated profile. Powered by a reliable automatic movement, this modification offers the perfect blend of stealthy, "all-black" dial sophistication and the timeless brilliance of polished stainless steel. It is an ideal choice for the enthusiast who values a versatile, high-end dress watch that feels both modern and classically inspired.

Model Type	• Custom Seiko "Black Onyx" Day-Date Style Luxury Modification • Expertly hand-assembled featuring a classic monochromatic aesthetic • A unique artistic modification blending vintage dress watch DNA with modern style
Case & Material	• 316L Surgical-Grade Stainless Steel with a mix of brushed and polished finishes • Features a classic Day-Date style case with a signature decorative fluted bezel • Equipped with a reinforced solid case back and screw-down crown for protection
Case Diameter	• Refined 36mm or 40mm case diameter for a graceful and sophisticated fit • Slim, streamlined profile designed to sit elegantly and secure on the wrist • Ergonomic lug design tailored for a seamless and comfortable integrated feel
Movement	• Reliable Seiko NH36 Automatic Caliber with hacking and hand-winding • Smooth sweeping mechanical seconds hand powered by natural wrist movement • Features a consistent power reserve for accurate and dependable timekeeping
Crystal	• Ultra-hard, scratch-resistant synthetic Sapphire Crystal glass for maximum clarity • Includes a 2.5x magnification cyclops lens over the date for superior legibility • Maintains long-term durability with superior resistance to daily impacts and scuffs
Dial Info	• Deep black dial featuring a dual calendar display for the day and date • Polished silver-toned baton markers and hands for a high-contrast luxury look • Clean, symmetrical layout that emphasizes the watch's sophisticated character
Bezel Info	• Iconic fixed fluted bezel designed to capture light with a high-end glow • Precision-engineered from stainless steel for a sharp and defined texture • Adds significant visual depth and brilliance to the overall watch head
Strap & Clasp	• Premium 316L stainless steel Presidential-style bracelet with a brushed finish • Features a soft-touch texture with curved links for an all-day comfortable fit • Tapered design with a secure folding concealed crown clasp for a seamless finish
Water Resistance	• Rated for 3ATM to 5ATM (30m - 50m) depending on specific build gasket seals • Equipped with a screw-down crown and internal gasket system to prevent moisture • Fully suitable for daily wear, hand washing, and light surface splashes
Functions	• Central hours, minutes, and central sweeping mechanical seconds hand • Instant-set day and date calendar with quick-change functionality • Hacking seconds feature for precise time synchronization and professional adjustment