[Introduction] This Seiko Chronograph 100M is a professional-grade timepiece that combines tactical legibility with contemporary sports styling. Featuring a deep black dial accented by high-contrast white sub-dials and vibrant red timing hands, it offers a distinct instrument-like aesthetic. The robust stainless steel construction and precise quartz movement make it an exceptionally reliable choice for active daily wear, maintaining the high standards of durability and performance for which Seiko is globally recognized. [Historical & Collector Value] The 4T57 caliber is a respected part of Seiko’s modern quartz chronograph lineage, known for its user-friendly layout and long-term reliability. This reference, 4T57-00J0, is appreciated for its "1/10 second" high-speed measurement capability, a feature that highlights Seiko's heritage in precision sports timing. Collectors and enthusiasts value these models as quintessential entry-level luxury chronographs that offer a significant price-to-performance ratio and a timeless design that bridges the gap between a tool watch and a dressy sports watch. Specifications ◇Brand: Seiko ◇Model: Chronograph 100M ◇Reference: 4T57-00J0 ◇Case size: 42 mm (excluding crown) ◇Movement: Quartz (4T57) ◇Case material: Stainless Steel ◇Dial: Black with white sub-dials and red accents ◇Crystal: Hardlex ◇Functions: 1/10 Second Chronograph, Date, 10-bar Water Resistance ◇Bracelet / Strap: Seiko original stainless steel bracelet ◇Clasp: Three-fold clasp with push-button release ◇Water resistance: 10 bar (100m) ◇Country of manufacture: Japan (Movement Japan) ・Condition The watch is in clean overall condition with light signs of normal wear. The stainless steel case and bracelet show minor surface scratches consistent with careful use. The dial remains in excellent condition with no visible signs of aging, and the crystal is clear. ・Service History The watch has been checked for basic operation and all chronograph functions are working correctly at the time of listing. As a quartz timepiece, it provides high accuracy and reliable performance. Future maintenance or battery replacement may be required depending on usage and the buyer’s standards. ・Shipping & Customs The item ships from Japan and will be carefully packed for secure transit. International shipping is available. Please note that any customs duties, taxes, or import fees are the sole responsibility of the buyer.