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The new Seiko Prospex "The 1959 Alpinist Modern Re-interpretation" (SPB241, SPB243, and SPB245) represents a reinvention link of the 1959 Alpinist – what many consider to be Seiko's first sport watch. Taking design cues from link the '59 model, this new collection link is markedly different from the "modern classic" Green Alpinist.

Each of these watches comes fitted with link a sapphire crystal caseback that opens onto the oscillating weight developed for these limited editions. Made of 22k link yellow or white gold the weight features an engraving of the 1017 ALYX 9SM signature as well as the indication of Newton's millimeter and rotor weight a nod to the link technical references indicated by Matthew Williams on his buckles.