SEIKO PRESAGE SARJ011 Open Heart

The Seiko Presage SARJ011 is a refined mechanical dress watch from the Presage collection, featuring a striking blue dial with open-heart display that showcases part of the automatic movement in action. It blends classic Japanese watchmaking craftsmanship with modern elegance.

Key Features

• Open Heart Dial Design
  A cut-out window on the dial reveals the oscillating balance wheel, allowing you to see the mechanical movement at work — a signature detail for enthusiasts.
• Deep Blue Sunburst Dial
  Elegant blue finish that shifts tones depending on lighting, paired with polished silver-tone hands and indices for a sophisticated look.
• Automatic Mechanical Movement – Caliber 6R21
• Self-winding with manual winding capability
• Stop-seconds (hacking) function
• Approx. 45-hour power reserve
• 29 jewels
• Power reserve indicator on dial
• Power Reserve Indicator
  Displayed on the dial, showing remaining energy stored in the mainspring.
• Exhibition Case Back
  Transparent case back to admire the decorated mechanical movement.

Specifications

• Model: SARJ011
• Collection: Seiko Presage
• Movement: Automatic – Caliber 6R21
• Power Reserve: Approx. 45 hours
• Accuracy: Approx. +25 / –15 seconds per day

Case & Dimensions

• Case Material: Stainless steel
• Case Diameter: Approx. 40.8 mm
• Thickness: Approx. 12–13 mm
• Crystal: Sapphire crystal
• Case Back: See-through screw case back

Strap / Bracelet

• Typically fitted with a stainless steel bracelet (market dependent), with deployment clasp.

Water Resistance:

• 10 bar / 100 meters — suitable for daily wear and swimming (not for diving).

Design & Wearability

The SARJ011 strikes a balance between dress elegance and everyday practicality:

• The open heart window adds mechanical character without overwhelming the dial.
• The blue sunburst finish elevates it for formal or business wear.
• The power reserve indicator adds both functionality and visual interest.

It’s ideal for someone who appreciates visible mechanical craftsmanship but prefers a clean, refined aesthetic.

The Seiko Presage SARJ011 Open Heart – Blue offers a compelling mix of mechanical sophistication, elegant design, and practical features like a power reserve indicator and 100 m water resistance. It’s a strong choice for those wanting a dress-oriented automatic watch with added visual intrigue.