SEIKO Prospex Automatic SPB103J1

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 INFORMATION
Powered 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.