Seiko Prospex Sumo - SPB325J1

Bold and built for adventure, the ‘Sumo’ PADI features a tough stainless steel case with ceramic b...

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Product Information

Full details

This guide is for adventurers and watch enthusiasts looking to understand and utilize the Seiko Prospex Sumo SPB325J1. This watch offers robust performance and stylish design, perfect for both underwater adventures and everyday wear. A key consideration is its specific care requirements to maintain its longevity.

All features

SeriesSumo
Model Part NumberSPB325J1
BrandSeiko

Extended Product Information

FAQs

How often should I have the watch serviced?

It is recommended to have the watch serviced every 3-5 years to ensure optimal performance and water resistance.

Is the silicone strap durable?

Yes, the silicone strap is designed for durability and comfort, but it requires regular cleaning to maintain its condition.

What does the 'Sumo' nickname refer to?

The nickname refers to the watch's case shape and design, which is reminiscent of a sumo wrestler.

How do I wind the watch?

The watch winds automatically with movement, but it can also be manually wound by turning the crown clockwise when unscrewed.

Can I swim with the watch?

Yes, the watch is water-resistant to 200 meters, making it suitable for swimming and diving.

What is the power reserve of the watch?

The watch has a power reserve of up to 70 hours when fully wound.

What is the purpose of the unidirectional bezel?

The unidirectional bezel is used to track elapsed time, such as dive times. It rotates in one direction to prevent accidental increases in the tracked time.

Troubleshooting

Watch is not keeping accurate time.

Check if the watch is fully wound. If the problem persists, the watch may require servicing.

Fogging under the crystal.

This indicates water has entered the watch; immediate professional servicing is required.

The bezel is difficult to turn.

Clean the bezel with a soft brush and warm water. If the problem persists, professional servicing is recommended.

Pros and Cons

Pros

  • Durable stainless steel case and ceramic bezel.
  • Excellent water resistance for diving.
  • Long power reserve of 70 hours.
  • Comfortable silicone strap.
  • Scratch-resistant sapphire crystal.
  • Stylish design with a special edition case back.

Cons

  • Requires specific care for the silicone strap.
  • Automatic movement requires regular wear or winding.
  • May require professional servicing.
  • The size (45mm) might be large for some wrists.
  • The watch is a special edition which may limit availability.

Setup, Compatibility & Care

No specific setup is required. The watch is ready to wear upon purchase.

Care Instructions:

  1. Cleaning: Wipe the case and crystal with a soft, damp cloth.
  2. Strap Care: Clean the silicone strap regularly with mild soap and water.
  3. Water Resistance: Ensure the crown is fully screwed down to maintain water resistance.
  4. Servicing: Have the watch serviced by a professional every few years to ensure proper function and water resistance.