
Seiko Prospex Sumo SPB103J Automatic Divers
Seiko · Shiels
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Selected variant · Available
Available. This price is from the selected variant; variant history is still being established. We've recorded it as low as $999.
In stock when we last checked on 10 Aug 2026. Prices change — confirm on the store's page before buying.
Price history
We started tracking this on 8 Aug 2026 and have recorded a single price so far. The chart appears once we've seen the price move.
Description
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
Details
- Weight
- 500 g
Variants
| Option | Price | Status |
|---|---|---|
| Option 1 | $999 | Available |
- Store
- Shiels
- Brand
- Seiko
- SKU
- 30261781
- Category
- Watches
- First tracked
- 8 Aug 2026
- Last checked
- 10 Aug 2026



