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HBC005
Prospex
Sea
Sea
Jun 2026 Release
Seiko 145th Anniversary Limited Edition
Limited edition of 4,000 pieces
In celebration of Seiko’s 145th anniversary,
Seiko Prospex introduces a limited-edition model with blue accents inspired by “Seiko Blue.”
Seiko Prospex introduces a limited-edition model with blue accents inspired by “Seiko Blue.”
In the second series of commemorative limited-edition watches celebrating Seiko’s 145th anniversary, a blue accent inspired by “Seiko Blue” is used. Established in the 1960s and refined over time, Seiko Blue continues to embody the Seiko brand identity.
“Seiko Blue,” a signature color established in the 1960s and perfected over the decades, inspires the watch’s blue bezel insert and seconds hand.
The case design, inspired by Japan’s first diver’s watch from 1965, embodies a compact, sophisticated, and iconic style. The combination of blue bezel and a silver white dial creates a fresh and sophisticated impression on the wrist.
Specifications
Movement
- Caliber Number
- 6R55
- Movement Type
- Automatic with manual winding
- Precision
- +25 to -15 seconds per day
- Power reserve
- Approx. 72 hours(3 days)
- Jewels
- 24
- Functions
-
- Stop second hand function
Case/Band
- Case Material
- Stainless steel
- Case Size
-
Thickness:13.0mm
Diameter:40.0mm
Lug-to-lug:46.4mm - Crystal
- Curved sapphire crystal
- Crystal Coating
- Anti-reflective coating on inner surface
- LumiBrite
- LumiBrite on hands, index(es) and bezel
- Clasp
- Three-fold clasp with secure lock & push button release, solid & slide adjuster
- Distance between lugs
- 20mm
Other Details
- Water Resistance
- 300m / 1000ft diver's
- Magnetic Resistance
- 4,800 A/m
- Features
-
- LIMITED EDITION on the case back
- Unidirectional rotating bezel
- Screw-down crown
- Screw case back
