Seiko Prospex SPB103J1 Men's Watch • 70h Power Reserve • Sapphire Crystal

The Seiko Prospex SPB103J1, also known by connoisseurs as the "Sumo," is a high-performance dive watch that embodies the highest Japanese manufacturing quality. Equipped with the modern in-house automatic movement caliber 6R35, it offers an impressive power reserve of 70 hours for maximum reliability.

The distinctive green dial is protected by scratch-resistant sapphire crystal, while the robust stainless steel case is water-resistant up to 200 meters. Thanks to the intense LumiBrite luminous material, the time remains perfectly readable even under the most challenging lighting conditions.

Special Features of the Seiko SPB103J1 Watch

• Precise automatic movement caliber 6R35 with 70-hour power reserve
• Scratch-resistant sapphire crystal and LumiBrite for optimal readability
• Solid stainless steel case with 200m water resistance (Diver's)

Care Instructions for Wristwatches

Care & Cleaning

• Daily: Wipe the case and strap with a soft, dry cloth to remove dirt and sweat.
• Water-resistant watches: Clean with mild soapy water and a soft brush, rinse, dry thoroughly.
  Important: Screw down the crown tightly beforehand!!!
• Not water-resistant: Only clean dry or slightly damp, do not use water or cleaning agents.
• Avoid: Abrasive agents, perfume, cosmetics, and heat.
• Leather straps: Do not soak, only clean slightly damp and allow to dry away from heat.
• Water resistance: Do not wear when showering or bathing, have it checked annually.
• Battery (Quartz): Have a dead battery replaced immediately.
• Mechanical watches: Service by a master watchmaker every 5 years.

Storage & Handling

• Store the watch separately, not directly with other jewelry (risk of scratching).
• Take off mechanical watches when winding, do not leave the crown pulled out.

Jewelry Care – How to Keep Your Jewelry Beautiful:

• Remove jewelry before showering, bathing, and sports.
• Avoid direct sun – wood, leather & co. can fade.
• Hands off – constant touching leaves grease and dirt.
• No aggressive cleaning agents such as chlorine, salt water, or disinfectants.
• Apply cosmetics and perfume first, then put on jewelry.