[Introduction] This Seiko Chronograph 100M offers a perfect blend of high-performance sports styling and modern functionality, making it an excellent daily companion for an active lifestyle. Featuring a bold black dial with high-contrast hands, three multi-functional sub-dials, and a prominent red central chronograph second hand, it delivers outstanding visual clarity and a dynamic appearance. The robust stainless steel case is paired with a matching stainless steel bracelet and a sleek black tachymeter bezel, creating a powerful, sophisticated look on the wrist. Powered by a precise quartz movement, this timepiece perfectly captures Seiko’s legacy of durable engineering and sporty elegance. [Historical & Collector Value] Driven by the reliable Seiko caliber 6T63 quartz movement, this model is part of a celebrated lineage of multi-functional analog chronographs. Often appreciated for its practical sub-dial layout—which includes a 24-hour indicator and a dedicated minutes counter—it showcases Seiko's commitment to delivering professional-grade timing instruments for everyday enthusiasts. Collectors value this reference for its robust build quality, timeless racing-inspired aesthetic, and exceptional reliability, representing a highly successful chapter in modern Japanese sports horology. Specifications ◇Brand: Seiko ◇Model: Chronograph 100M ◇Reference: 6T63-00D0 ◇Case size: 42mm ◇Movement: Chronograph Quartz ◇Case material: Stainless Steel ◇Dial: Black ◇Functions: Chronograph, 24-Hour Display, Date, Tachymeter ◇Bracelet / Strap: Stainless Steel ◇Clasp: Fold-over clasp ◇Water resistance: 10 BAR ◇Country of manufacture: Japan ・Condition Excellent condition with minimal signs of use. The stainless steel case and bracelet maintain a clean finish with well-preserved surfaces. The dial, hands, and crystal are beautifully preserved, ensuring perfect legibility and a sharp presentation. ・Service History The watch has been checked for basic operation and is functioning accurately at the time of listing, with a responsive battery powering its precise quartz movement. As with any pre-owned watch, future maintenance may be required depending on usage and the buyer’s standards. ・Shipping & Customs Ships from Japan, carefully packed. International shipping is available. Customs duties and taxes are the buyer’s responsibility.