SKU: 23801
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WHAT WE LOVE:
The Seiko 2025 Prospex Speedtimer SPB515J1 brings vintage racing heritage into the modern age, blending retro cues from the iconic 1972 Speedtimer with the reliability and refinement of contemporary sports watchmaking. This latest reference captures the spirit of timing precision while staying effortlessly wearable, striking a perfect balance between utilitarian function and everyday elegance.
The stainless steel case measures 39.5mm in diameter and is treated with Seiko’s signature super-hard coating, providing resistance to scratches and the wear of daily life. With a slim profile of just 12.0mm and a 44.5mm lug-to-lug span, the watch remains faithful to its vintage inspiration while offering modern wrist comfort. The crisp brown dial is stunning and legible, punctuated by sharply faceted hands and applied indices, each treated with LumiBrite for low light visibility.
A standout feature is the inner rotating countdown bezel, controlled via a second crown positioned at 4 o’clock. This practical tool allows for precise tracking of timed intervals, with the final 15 minutes highlighted in bold orange, a subtle yet purposeful detail that speaks to the Speedtimer’s tool watch DNA. A curved sapphire crystal with an anti-reflective coating on the inner surface ensures clarity from every angle, while a discreet date window at 4:30 blends cleanly into the dial thanks to a colour matched date disc. The orange tipped central seconds hand adds a sporty energy to the design, without overpowering its refined aesthetic.
Finished with a brushed and polished stainless steel bracelet, secured by a three-fold clasp with push button release, the SPB515J1 is ready for daily wear, active pursuits, or quiet appreciation. Water-resistant to 20 bar and sealed with a screw-down case back, this Speedtimer doesn’t just evoke precision, it’s built for it.
WHAT'S INSIDE:
Powering the SPB515J1 is Seiko’s Caliber 6R55, an automatic mechanical movement with manual winding capability. It delivers a robust 72-hour power reserve and features 24 jewels, along with a stop-seconds function for accurate time setting. With a daily accuracy of +25 to -15 seconds, this movement brings dependable performance and mechanical soul to a timepiece that bridges past and present with poise.
SEIKO FACTORY THREE-YEAR WARRANTY
