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Seiko Prospex SPB101J 'Sumo' Automatic Watch

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Introducing the Seiko Prospex SPB101J 'Sumo' Automatic Watch, a robust timepiece designed for adventure seekers. Powered by the wearer's movement, it boasts the reliable Caliber No. 6R35 automatic movement, maintaining accuracy within +25 to -15 seconds per day within the normal temperature range of 5°C to 35°C. With an impressive 70 hours power reserve, this watch ensures long-lasting performance even during extended wear.

Crafted with a 45mm stainless steel case and a thickness of 12.9mm, it strikes a perfect balance between durability and comfort. Weighing 188g, it feels substantial on the wrist without being cumbersome. The scratch-resistant sapphire crystal protects the dial, while the screw-down crown enhances water resistance up to 100 meters, making it suitable for aquatic adventures.

Equipped with a one-way rotating bezel for measuring elapsed time and featuring a date display for added convenience, this watch is as functional as it is stylish. Whether exploring the depths of the ocean or navigating city streets, the Seiko Prospex SPB101J 'Sumo' is the ultimate companion for every journey.

- Caliber No. 6R35
- Automatic Movement – Powered by the movement of the wearer
- +25 -15 seconds at normal temperature range (5°C and 35°C)
- 70 Hours Power Reserve
- 45mm Case Size
- 12.9mm Case Thickness
- Stainless Steel Case and Bracelet
- 188g Weight
- Sapphire Crystal
- Screw Down Crown
- Rotating Bezel – One Way
- Date
- 100 Meters Water Resistant

Please note: if this product contains a button or coin battery, read the mandatory safety and information standards here.

Water Resistance

200 metres

Watch Strap Material

Stainless steel

Watch Type


Watch Strap Colour




Watch Case Colour


Watch Dial Colour


More Information 
Length: Gents
Model number: Spb101j
Sub category: Watches

Estimated Delivery Within Australia

   Free Shipping On Orders Over $69

Standard Postage after dispatch time - $9.95

Seiko Prospex SPB101J 'Sumo' Automatic Watch

Customer Reviews

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Seiko Sumo Gen 3 Black Review

Bought this watch a few weeks ago from Watch Depot and I am very happy with the purchase. Love the watch! Stunning case and dial. Awesome Lume. Keeps very accurate time. Highly recommend this watch. Postage was quick without any issues.

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