Introduction This auction features a dynamic Seiko Chronograph 100M 4T57-00A0, a high-performance timepiece that showcases Seiko's expertise in creating reliable and stylish sports watches. With its bold presence and precision engineering, this model is designed for those who value both functionality and a modern aesthetic. Historical / Era context Part of Seiko’s contemporary chronograph lineup, the caliber 4T57 is a modern workhorse movement known for its impressive 1/10th of a second measurement capability. This era of Seiko watchmaking focuses on delivering professional-grade features—such as 10-bar water resistance and instantaneous date displays—within a design language that remains timelessly sporty. Condition The watch is running properly. New battery recently replaced. Case: Displays visible surface scratches and signs of wear on the bezel and lugs consistent with regular use, but retains its strong, masculine profile. Dial: The sunray blue dial is in excellent condition, offering a deep, vibrant hue that transitions beautifully under different lighting conditions. Crystal: Shows some minor surface marks and signs of use as seen in the photographs, though legibility remains clear. Band: The original Seiko stainless steel bracelet shows typical fine scratches from previous wear but remains structurally sound and secure. Specifications Brand: SEIKO Model: Chronograph 100M Reference: 4T57-00A0 Movement: Japanese Quartz (Cal. 4T57) Case material: Stainless Steel Case diameter: 42.5 mm (excluding crown) Dial color: Blue Band: Original stainless steel bracelet Wrist size: Approximately 15.5 cm Closing note This Seiko Chronograph 100M is an ideal choice for anyone seeking a dependable daily wearer with a sporty edge. Its striking blue dial and robust construction make it a standout piece on the wrist. Please examine the detailed photos for a complete understanding of its condition before bidding.