BRAND: SEIKO MODEL: Prospex Automatic Men’s (SPB103J1) DESCRIPTION:The Seiko Prospex SPB103J1 is a robust automatic diver’s watch that combines professional-grade capability with distinctive styling. Known among enthusiasts as part of the iconic “Sumo” family, it features a bold green dial, substantial stainless steel construction, and enhanced mechanical performance. Designed for underwater reliability and everyday durability, it delivers strong wrist presence while maintaining refined finishing. PRODUCT DETAILS Gender: Men Style: Diving, Automatic Collection: Prospex CASE Size / Diameter: 45 mm Thickness: 12.9 mm Material: Stainless Steel Color: Silver DIAL Color: Green GLASS Type: Sapphire Crystal STRAP Type: Bracelet Material: Stainless Steel Color: Silver WATER RESISTANCE Rating: 200 m Diver’s GUARANTEE Coverage: 3 Years Official Guarantee PACKAGING & EXTRAS Included: Seiko Official Gift Packaging TECHNICAL SPECIFICATIONS Movement: Automatic Caliber: 6R35 Functions: Date Power Reserve: Approx. 70 Hours Accuracy: +25 to -15 Seconds per Day Jewels: 24 ADDITIONAL INFORMATIONPowered by the upgraded Seiko 6R35 automatic movement, the SPB103J1 offers an extended 70-hour power reserve, making it ideal for multi-day wear without resetting. The combination of 200 m diver’s water resistance, scratch-resistant sapphire crystal, and its signature 45 mm “Sumo” case design gives this model excellent performance and a strong collector appeal.
