Seiko 5 Sports Automatic Open-Heart Watch – Blue Sunray Dial & Nylon Strap

The Seiko 5 Sports is a legendary lineup that has been building watch lovers’ trust since 1963 — and this latest iteration brings a sports-diver edge to that heritage. The deep blue sunray sunburst dial shimmers with every movement of the wrist, while the open-heart window at 9 o’clock offers a mesmerizing peek at the beating automatic movement inside.

Key Specifications:
• Movement: Japanese Automatic (self-winding, no battery needed)
• Dial: Blue Sunray Sunburst with open-heart exhibition
• Bezel: Rotating Diver’s Bezel
• Crystal: Hardlex
• Date Display: Yes
• Case Material: Stainless steel
• Strap: Blue nylon NATO-style
• Water Resistance: 100m

Features:
• Open-heart mechanism visible at 9 o’clock
• Luminous hands and hour markers
• Screw-down crown

Perfect for: Diving enthusiasts, watch collectors, sports, gifting, everyday wear.