[Introduction] This Seiko Chronograph 100M is a powerful statement of sport-driven aesthetics and precision Japanese engineering. Featuring a bold black dial layout accented by sharp silver indices and vibrant red chronograph hands, this piece delivers immediate legibility and a commanding mechanical presence. Paired with a contrast-stitched black leather strap and a rugged steel case, it embodies a classic automotive racing spirit that transitions effortlessly into high-performance everyday wear. [Historical & Collector Value] Driven by the highly reliable Caliber 6T63 quartz movement, this timepiece belongs to Seiko's celebrated lineage of tactical and sporting sub-dial chronographs. The movement is widely appreciated for providing a crisp, mechanical-like reset snap on the central seconds hand, echoing the tactile feedback of vintage racing timers. With its tachymeter bezel layout and solid 10 BAR water resistance, this discontinued reference remains highly appealing to collectors who appreciate robust, high-utility tools that reflect Seiko’s motorsport timekeeping heritage. Specifications ◇Brand: Seiko ◇Reference: 6T63-00G0 ◇Case size: Approximately 42 mm (excluding crown) ◇Movement: Chronograph Quartz ◇Case material: Stainless Steel ◇Dial: Black with red accents ◇Functions: Time, Chronograph, 24-Hour Indicator, Date, Tachymeter ◇Bracelet / Strap: Black leather strap with white stitching (Seiko branded buckle) ◇Clasp: Buckle ◇Water resistance: 10 BAR (Stated on caseback) ◇Country of manufacture: Japan (Movement Japan) ・Condition Clean overall condition with light signs of age and normal wear. The stainless steel case and bezel show minor surface hairlines and scuffs from standard pre-owned use. The dial, hands, and crystal are beautifully preserved, and the leather strap remains in supple, ready-to-wear condition. It comes accompanied by its genuine Seiko inner box. ・Service History The watch has been checked for basic operation and is functioning with a working battery at the time of listing. The chronograph functions start, stop, and reset properly, and the date changes correctly. As with any pre-owned watch, future maintenance may be required depending on usage and the buyer’s standards. ・Shipping & Customs The item ships from Japan and will be carefully packed for safe transit. International shipping is available. Please note that any customs duties, import taxes, or local fees are the sole responsibility of the buyer.