Seiko Astron Nexter Solar Radio HAD003J 145th Anniversary Edo Purple Limited Edition Japanese Wristwatch

The Seiko Astron Nexter Solar Radio HAD003J is a Japan domestic limited release of just 500 pieces — one of the most restricted models in Seiko's 145th Anniversary third-wave collection. The thematic colour is 江戸紫 (Edo Purple), rendered across the dial with Seiko's "horizontal pattern" emboss: a three-dimensional texture whose bands vary in width from top to bottom, combined with a vertical colour gradient that evokes the changing hue of sky as daylight fades to dusk. Gold accents on the logos and GMT hand reference the commemorative theme. Solar Radio Caliber 8B92 with 1/5 second stopwatch, 60-minute counter, world time across 25 timezones, radio correction from Japan, China, USA and Germany, and perpetual calendar to 2099. Pure titanium case with Dia-Shield coating, sapphire crystal with Super Clear coating. Mirror-polished centre bracelet links create a visual rhythm against the brushed outer links. See-through screw caseback marked "LIMITED EDITION". 10ATM water resistance. Releasing October 9, 2026.

*Pre-Order! Estimated release and shipment from October 9, 2026.*

Key Features:

• Horizontal Pattern Edo Purple Dial — Gradient Depth: The dial features the "horizontal pattern" three-dimensional emboss with varying-width bands and a vertical purple gradient, creating a surface that shifts from deep shadow at the base to a lighter, purer purple at the crown — evoking the colour change of twilight sky, and the depth of the Edo Purple colour tradition.
• Solar Radio Caliber 8B92 — 25 Timezones, 1/5s Stopwatch, Radio from 4 Countries: Solar-powered with ~6 months' full charge drive, radio correction from Japan, China, USA and Germany. 1/5 second stopwatch with 60-minute counter, world time across 25 timezones, perpetual calendar to December 31, 2099. 24-hour hand. Auto and forced reception.
• Pure Titanium Dia-Shield Case — Mirror Centre Links: Pure titanium case with Dia-Shield surface treatment. Mirror-polished centre links on the bracelet create contrast against brushed outer links, with gold tone accents referencing the 145th anniversary gold theme. Smart Adjuster micro-adjust mechanism. Nickel allergy resistant. 41.3mm diameter, 10.6mm thick — notably slim for a solar radio chronograph.
• Japan Domestic Limited — 500 Pieces Only: HAD003J is limited to 500 pieces for the Japanese domestic market, making it one of the most restricted models in the entire 145th anniversary collection.

Watch Specifications

Product File
Brand: Seiko
Product: Wristwatch
Collection: Limited Edition
Movement: Solar (Radio)
Display: Analog