Seiko Prospex Marinemaster 1968 Heritage Diver × JAMSTEC

Japanese · Jul 2026

Gradient blue "Arctic ice" dial honouring JAMSTEC's icebreaker, with a new tool-less 16mm micro-adjust bracelet and ceramic bezel.

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2026-09-19 — names the watch but offers no purchase. No stock check has been run on this entry.

AvailabilityBuy at retailer — No online purchase page was found. Retail availability has not been checked.

Price$3,900

Edition1,000 (250 Japan)

ReferenceHBF002

ReleasedJul 2026 · Japanese

Specification42.6 × 14.1mm steel, 300m; cal. 8L45, 72h, −5/+10 spd

ConfidenceHigh

Seiko US — product page Reported by watchesbysjx.com

See this entry in the full register — every limited-run watch of 2026, with what it costs and whether you can still get one.