The Seiko Prospex Speedtimer SRQ055 pays tribute to Seiko’s sports timing heritage with a bold black dial, contrasting sub-dials, and a tachymeter bezel for precise speed measurement. Its stainless steel case with super-hard coating resists scratches, while a dual-curved sapphire crystal with anti-reflective coating ensures crystal-clear visibility. Powered by the in-house 8R48 automatic chronograph movement with a column wheel and vertical clutch, it delivers smooth, accurate timing. A screw-down case back enhances durability, making this timepiece a perfect blend of professional-grade performance and timeless mechanical craftsmanship.