Seiko Prospex Alpinist HBC006J 145th Anniversary Limited Edition Edo Purple Wristwatch

The Seiko Prospex Alpinist HBC006J is the third limited-edition release in Seiko's 145th Anniversary commemorative collection — a Seiko Global Brand Core Shop exclusive, limited to just 7,000 pieces worldwide with only 1,000 pieces allocated to Japan. The Alpinist lineage traces directly to 1959 and the Laurel Alpinist — Seiko's first dedicated sport watch and first sports watch — and has remained one of the most distinct and philosophically coherent watch designs in the brand's history: a compass-equipped, high-legibility mountaineering tool built to withstand recreational field sports, wrapped in a case that is unmistakably Japanese in its aesthetic restraint. For this 145th anniversary model, the thematic colour is 江戸紫 (Edo Purple) — a colour that represents the aesthetic consciousness of Edo-Tokyo, the fusion of traditional craft and contemporary creativity that defines the city's cultural identity across the centuries. Gold accents throughout evoke the celebratory weight of the anniversary. The movement is Caliber 6R55 — Seiko's high-end automatic caliber with 72-hour power reserve. The case is finished with Dia-Shield coating for scratch resistance. The sapphire crystal features inner anti-reflective coating for maximum legibility. The caseback reads "LIMITED EDITION" and the inner rotating bezel serves as a simplified compass. Releasing October 2026.

*Pre-Order! Estimated release and shipment from October 2026.*

Key Features:

• 江戸紫 (Edo Purple) Dial — 145th Anniversary Theme Colour: The dial colour is inspired by 江戸紫 — the deep, blue-tinged purple that has symbolised elegance and civic pride in Tokyo since the Edo period. As the third colour in Seiko's 145th anniversary series and part of the セイコー創業145周年記念 lineup, Edo Purple represents the tradition and creativity that have defined Tokyo's character across four centuries. Gold accents on the indices and hands frame the dial with the gravitas of a genuine commemorative piece.
• Alpinist DNA — Compass Inner Bezel & Screw-Lock Crown: The inner rotating bezel serves as a simplified compass, continuing the functional mountaineering heritage of the original 1959 Laurel Alpinist / ローレル アルピニスト. The screw-lock crown provides secure water resistance to 200 metres. Together these details confirm the HBC006J as a tool watch first, a commemorative piece second — exactly as the Alpinist has always been. The design spirit reflects the original model's purpose for mountain climbers and recreational field sports, while remaining one of Seiko's most recognizable classic sports watch designs.
• Caliber 6R55 — 72-Hour Power Reserve: The 6R55 is one of Seiko's premium automatic calibers: 24 jewels, approximately 72 hours of power reserve on a full wind, manual winding capability, and a hacking seconds hand. The see-through screw caseback puts the movement on display while confirming "LIMITED EDITION" on the outer caseback ring.
• Dia-Shield Case & Sapphire Crystal with Inner AR Coating: The 39.5mm stainless steel case is coated with Dia-Shield — Seiko's diamond-like carbon surface treatment — for exceptional resistance to everyday scratches. The sapphire crystal features inner anti-reflective coating, eliminating glare from behind the glass for clean legibility in any light. Lumibrite lume on hands and indices completes the tool watch functionality.
• Seiko Global Brand Core Shop Exclusive — World Limited 7,000: Available only through Seiko's designated Global Brand Core Shops worldwide, with 1,000 pieces allocated domestically in Japan. The exclusivity of the distribution channel, combined with the 7,000-piece world limit, makes this one of the most restricted Prospex releases of the anniversary year.

Watch Specifications

Product File
Brand: Seiko
Product: Wristwatch
Collection: Limited Edition
Movement: Automatic
Display: Analog