Introduction This Seiko Chronograph 100M, reference 7T92-0CF0, is a robust and highly legible quartz chronograph designed for practical daily use. Featuring a 40 mm stainless steel case, black multi-scale dial, and rotating bezel with slide-rule markings, this model reflects Seiko’s strong reputation for functional sports chronographs. Historical & Collector Value Seiko has long been recognized for its in-house quartz innovation and durable tool watches. The Caliber 7T92 chronograph movement became widely respected for its reliability, precise timekeeping, and user-friendly chronograph functionality. Reference 7T92-0CF0 represents a period when Seiko combined aviation-inspired slide-rule bezels with everyday water resistance, creating versatile chronographs suitable for both sport and casual wear. Collectors appreciate these models for their dependable Japanese engineering, practical 100-meter water resistance, and classic black-dial chronograph aesthetics. Specifications • Brand: Seiko • Model: Chronograph 100M • Reference: 7T92-0CF0 • Movement: Seiko Cal. 7T92, Quartz Chronograph • Case Material: Stainless steel • Case Size: Approximately 40.1 mm • Dial: Black with luminous hour markers and three sub-dials • Functions: Chronograph, date display • Bezel: Rotating bezel with slide-rule scale • Water Resistance: 100 meters (as indicated on case back) • Case Back: Stainless steel, screw-down type • Bracelet: Stainless steel bracelet Condition Condition: Very Good The watch shows light to moderate signs of careful use. Minor surface scratches are visible on the case and bracelet consistent with regular wear. The bezel shows light wear along the outer edge. The dial and hands remain clean and highly legible. The bracelet and clasp function securely. Please review the photographs carefully for full details. Service History The watch has been fully inspected and confirmed to be in working order. It has undergone an overhaul (OH completed), and the battery has been replaced. All chronograph functions, date change, and crown operation function correctly at the time of listing. Shipping & Customs International shipping is available. The watch will be securely packaged to ensure safe delivery. Please note that any customs duties, import taxes, or VAT are the responsibility of the buyer.