In celebration of Seiko’s 145th anniversary, 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.

Inspired by “Seiko Blue,” a signature colour established in the 1960s and perfected over the decades, blue is adopted as an accent colour for the bezel and seconds hand.

The combination of the two-tone bezel and a silver white dial creates a fresh and sophisticated impression on the wrist.

This model inherits a case design composed of straight, blade-like surfaces, while achieving a sharper and more compact form. With chamfering on the centre links, the high-quality, solid bracelet delivers a refined finish that complements the case’s linear design.

Specifications

Movement

• Caliber Number: 4R35
• Movement Type: Automatic with manual winding
• Power reserve: Approx. 41 hours
• Jewels: 23
• Functions
  • Stop second hand function
  • Date display

Case/Band

• Case Material: Stainless steel
• Case Size
  • Thickness: 12.25 mm
  • Diameter: 41.7 mm
  • Lug-to-lug: 49.5 mm
• Crystal: Hardlex
• LumiBrite: LumiBrite on hands, index(es) and bezel
• Clasp: Three-fold clasp with secure lock , push button release with extender
• Distance between lugs: 20mm

Other Details

• Water Resistance: 200m / 660ft diver's
• Magnetic Resistance: 4,800 A/m
• Weight: 170.0g

Features

• LIMITED EDITION on the case back
• Unidirectional rotating bezel
• Screw-down crown
• Screw case back