Seiko Presage SPB527J1 Ai-iro Japan Blue open-heart dial automatic 40.2mm watch
Seiko SPB527J1 open-heart complication showing 6R5J automatic movement
Seiko Presage SPB527J1 textured Japan Blue dial with curved sapphire crystal
Seiko SPB527J1 side view showing dual-curved sapphire and 40.2mm case
Seiko Presage SPB527J1 exhibition case back revealing 6R5J movement 72hr reserve
Seiko Presage open-heart collection SPB527J1 blue dial and SPB525J1 comparison
Seiko Presage SPB527J1 Ai-iro open-heart watch on wrist lifestyle shot
Seiko SPB527J1 Japan Blue dial dress watch elegant formal wear styling
Seiko Presage SPB527J1 open-heart automatic showcasing mechanical movement detail
Seiko SPB527J1 Ai-iro blue dial with visible open-heart complication at 9 o'clock

SEIKO PRESAGE SPB527J1 CLASSIC SERIES OPEN HEART AUTOMATIC MEN WATCH

SPB527J1

  • Enter Code at cart page: HUAT38 ($38 off min $380)
Regular price$1,662.00
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  • Warranty 3 Years
  • 15% off in cart
  • Free Shipping | Enjoy Same-Day Delivery (Min $350)
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Experience the artistry of Japanese watchmaking with the Seiko Presage SPB527J1 Classic Open Heart Automatic Men's Watch.

This exceptional timepiece celebrates traditional Japanese aesthetics with its distinctive Ai-iro (Japan Blue) dial, a color deeply rooted in Japanese culture and craftsmanship. The SPB527J1 features an open-heart design at 9 o'clock that reveals the mesmerizing movement of the in-house 6R5J automatic calibre, creating a captivating window into the mechanical artistry within. Powered by the advanced 6R5J movement with an impressive 72-hour power reserve, this watch blends heritage craftsmanship with modern reliability and refined elegance.

Key Features:

  • Seiko Calibre 6R5J automatic movement - 72 hours power reserve for extended performance
  • Distinctive Ai-iro Japan Blue dial - traditional Japanese color with cultural significance
  • Open-heart design at 9 o'clock - view the automatic movement in action
  • Stainless steel case - durable construction with polished finish
  • Sapphire crystal - scratch-resistant protection with anti-reflective coating
  • Exhibition caseback - full view of the 6R5J movement craftsmanship
  • Date display at 3 o'clock for everyday practicality
  • Leather strap - comfortable and refined for daily wear
  • 100m water resistance (10 BAR) - suitable for swimming and daily wear
  • Made in Japan - Seiko's legendary craftsmanship and quality control

Why This Watch Stands Out:
The SPB527J1 represents Seiko's commitment to celebrating Japanese heritage through watchmaking artistry. The Ai-iro Japan Blue dial creates a stunning aesthetic that references traditional Japanese indigo dyeing techniques, while the open-heart design at 9 o'clock provides a captivating view of the automatic movement's intricate mechanics. The in-house 6R5J movement with 72-hour power reserve provides exceptional reliability and can be fully admired through both the open-heart window and exhibition caseback. With sapphire crystal protection featuring anti-reflective coating and 100-meter water resistance, this Presage is built for both daily elegance and real-world durability. The combination of traditional Japanese aesthetics and modern mechanical excellence makes this watch a perfect expression of Seiko's Presage heritage.

Perfect for Japanese craftsmanship admirers, open-heart watch enthusiasts, Presage heritage collectors, mechanical watch fans, and anyone who values distinctive Ai-iro Japan Blue dial design combined with modern 6R5J automatic movement, 72-hour power reserve, captivating open-heart display, and traditional Japanese aesthetic excellence.

Movement
Accuracy:-15/+25 seconds per day
Calibre:6R5J
Movement Type:Automatic with Manual Winding
Power Reserve:72 Hours
Jewels:24

Case
Dial Colour:Blue
Case Material:Stainless steel (super-hard coating)
Strap/Bracelet:Stainless steel (super-hard coating)
Clasp:Deployment clasp with push button release
Case Diameter:40.2mm
Case Thickness:13.0mm
Case Length:46.00mm
Lug Width:20.0mm

Other Specifications
Water Resistance:10 BAR
Crystal Coating:Anti-reflective coating on inner surface
Crystal Type:Dual-curved sapphire crystal
Other Specifications:Screw case back, See-through case back
Watch Function:24-hour hand, Stop seconds hand function

For online purchase, you can have bracelet or leather strap adjustments done at any City Chain store. Please bring along your warranty book for the service.

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