SpecStudio
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Seiko Sumo
$762Stock unknown
Case
- Diameter
- 45mm
- Thickness
- 13.2mm
- Lug-to-lug
- 51.8mm
- Material
- Stainless Steel
- Water resistance
- 200m
Crystal & dial
- Crystal
- Sapphire
- AR coating
- Yes
- Dial colour
- Green
Movement
- Caliber
- 5K65
- Type
- Solar
- Jewels
- 3
Design language
- Case shape
- round
- Dial style
- textured
- Bezel
- rotating_unidirectional
- Bracelet
- metal_oyster
AI-detected from the product image
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The market
Market prices.
Retail$762
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Retail stock & market context
Seiko on the secondhand market
+10.5%
2026 so far · +5.9% to +16.1% · 91 matched watches
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In a nutshell
The Seiko Sumo is a solar watch, with a 45mm stainless steel case, 13.2mm thick, powered by the 5K65 movement and a 9 months (full charge)-hour power reserve. Water resistance is rated to 200m, under a sapphire crystal. Manufacturer MSRP is $762. The dial color is green.
On real wrists · 1
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