A modern tribute to seiko’s pioneering spirit, the seiko prospex alpinist spb503j1 continues a legacy that began in 1959 with timepieces built for japan’s mountain explorers, the yama otoko. This refined model features a deep teal blue dial beneath scratch resistant sapphire crystal glass, enriched by vintage inspired cathedral hands, arabic numerals and wedge shaped indices that echo its adventurous heritage. The stainless steel case, finished with seiko’s super hard coating, offers both enduring resilience and a subtle, lustrous sheen. A sapphire exhibition case back reveals the meticulously crafted 6r55 automatic movement, offering a 72 hour power reserve and precision of 15 25 seconds per day. Water resistant and built to withstand rugged environments, the spb503j1 is a versatile companion for explorers and collectors alike. Its blend of functional durability and timeless style captures the essence of the prospex spirit, where professional performance meets classic seiko craftsmanship. • powered by the 6r55 automatic movement with 24 jewels and a power reserve of up to 72 hours. • presented on a silver stainless steel bracelet with push button deployment clasp. • scratch resistant sapphire crystal glass with anti reflective coating on inner surface and date magnifier. • 46.4mm case width. • 200 metre water resistance.