The Prospex SPEEDTIMER SPB517 combines precision engineering with timeless design. Powered by the reliable 6R55 automatic movement with manual winding capability, this timepiece delivers exceptional accuracy within +25 to -15 seconds per day. With a robust 72-hour power reserve, you'll enjoy uninterrupted timekeeping throughout your week.

Built for durability, the 39.5mm stainless steel case features a super hard coating and curved sapphire crystal with anti-reflective coating for optimal visibility. The screw-down case back houses a serial number and LIMITED EDITION marking, adding exclusivity to this collector's piece. Water-resistant to 20 bar and magnetic-resistant to 4,800 A/m, it's engineered for real-world performance. The supple cow leather band with three-fold clasp ensures comfort and security, while LumiBrite hands and indices provide visibility in low-light conditions.