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Seiko Prospex SPB103J Sumo Green Divers Watch

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The Seiko SPB103J Prospex Sumo presents an automatic movement timepiece boasting 200m water resistance. Sporting a classic aesthetic, the SPB103J flaunts an emerald, green case and dial, coupled with a stainless-steel case and bracelet.

Driven by the Seiko mechanical automatic 6R35 movement, the SPB103J1 maintains an accuracy tolerance of +25/-15 seconds per day. Crafted entirely in stainless steel, this model features lumibrite-coated hands and markers for nighttime visibility once fully charged. With a case diameter of 45mm and a thickness of 12.9mm, the watch weighs approximately 188gm. As a 200m dive watch, it includes a screw lock crown, screw case back, and a uni-directional rotating bezel. Additional functionalities encompass a date display and a stop seconds hand feature.

The impeccable finish and pristine appearance, particularly the captivating green dial, elevate this model to a potential Seiko cult classic. Notably substantial in hand, this timepiece is proudly made in Japan, with its allure transcending mere imagery.

- Caliber No. 4R35
- Automatic Movement – Powered by the movement of the wearer
- Accuracy +25 -15 seconds at normal temperature range (5°C and 35°C)
- 45mm Case Size
- 12.9mm Case Thickness
- 188g Weight
- Stainless Steel Case and Bracelet
- Sapphire Glass
- Screw Down Crown
- Rotating Bezel One Way

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

Automatic, sport

Watch Strap Colour




Watch Case Colour


Watch Dial Colour


More Information 
Length: Gents
Model number: Spb103j
Sub category: Watches

Estimated Delivery Within Australia

   Free Shipping On Orders Over $69

Standard Postage after dispatch time - $9.95

Seiko Prospex SPB103J Sumo Green Divers Watch

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