Seiko marks 145th anniversary with 'Edo purple' Prospex Alpinist, reviving 1959 logo and packing Caliber 6R55 with 3-day power reserve
SeikoSeiko Holdings Corporation

Seiko marks 145th anniversary with 'Edo purple' Prospex Alpinist, reviving 1959 logo and packing Caliber 6R55 with 3-day power reserve

Seiko celebrates its 145th anniversary with a limited edition Prospex Alpinist featuring an 'Edo purple' dial, a nod to its Tokyo roots. The watch revives the 1959 logo and is powered by the Caliber 6R55 movement, boasting a three-day power reserve and a price of $900.

Gear Patrol+1 source7 August 2026 · 05:56 UTC
CuriousCats Full Story

Seiko marks its 145th anniversary with the release of a limited edition Prospex Alpinist watch, featuring a striking 'Edo purple' dial that pays homage to the brand's Tokyo origins. This special edition not only revives the 1959 Alpinist logo but also incorporates modern advancements in watchmaking.6

The 40mm stainless steel case is complemented by a black leather strap embossed with a crocodile texture, featuring purple side stitching to match the dial. The watch is powered by the Caliber 6R55 automatic movement, known for its reliability and precision, operating at 4Hz and offering a remarkable three-day power reserve.245

Seiko's choice of 'Edo purple' reflects its cultural significance, symbolizing hope and drawing inspiration from the elegance of the Edo period. The watch is priced at $900 and is limited to 7,000 pieces, making it a collectible item for enthusiasts. This release is part of a broader celebration, as Seiko reimagines several iconic models with purple accents, showcasing its rich heritage and commitment to craftsmanship.

The Alpinist has always been designed for durability and reliability, making it a fitting tribute to the original model launched in 1959, which was aimed at mountain travelers. With its refined design and modern features, the Prospex Alpinist 'Edo purple' stands as a testament to Seiko's legacy in the watchmaking industry.

Key Insight
“The Alpinist is one of six purple-dial models in the anniversary collection, each with distinct limits—from 2,000 Astron pieces to 9,999 SKX units. The 'Edo purple' hue symbolizes hope for the future, drawing on Tokyo's Edo period heritage.”
CuriousCats studied:
1
Gear Patrol
“The Alpinist gets an “Edo purple” dial in celebration of Seiko’s 145th anniversary.”
Gear Patrol →
2
EsquireEsquire
“This year, Japanese watchmaker Seiko celebrates its 145th anniversary, and the brand is commemorating its beginnings as a Tokyo clock and watch repair shop in 1881 with a series of purple watches.”
Esquire →
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