Seiko Prospex Save The Ocean Men's Watch SPB545J1

Professional diving style and iconic design define the Seiko Prospex Save The Ocean SPB545J1 men's watch , a limited edition of just 4,000 pieces worldwide inspired by the depths and extraordinary colors of the ocean around Okinawa, one of the world's most fascinating diving destinations.

Equipped with a powerful Seiko caliber 6R55 automatic movement with manual winding and a power reserve of approximately 72 hours , this diver combines precision and reliability at the highest levels.

The 40mm stainless steel case with curved sapphire crystal and anti-reflective treatment protects a magnificent blue sunray dial that captures and reflects light like water in the sun, while the unidirectional bezel and gray bezel reinforce the sporty diving vocation.

• Brand: Seiko
• Collection: Prospex Save The Ocean
• Movement: Automatic
• Functions: Hours, minutes, seconds, date
• Case: Steel
• Case diameter: 40 mm
• Dial: Blue with sunray pattern
• Glass: Curved sapphire with anti-reflective coating
• Bracelet: Steel
• Bezel: Unidirectional for diving
• Waterproof: 300m / 1000ft (professional diver)
• Reference: SPB545J1
• Limited Edition

Item shipped with Seiko case and warranty

What does self-winding mechanical movement mean?

Automatic watches , often referred to as self-winding watches, are mechanical watches that harness the kinetic energy generated by the natural movements of the wrist. This allows the internal spring to wind itself, without the need for external intervention.

The power reserve typically varies between 36 and 80 hours. If the watch is not worn for a few days, it may stop working: simply put it back on your wrist and it will start working again after a few moments.

One of the main advantages of this technology is the absence of batteries, which are instead used in quartz movements. This makes the automatic watch a more eco-friendly choice and, with proper maintenance, capable of lasting for decades .