Illustration. The seconds hand ticks, as most quartz movements do.
Why it's interesting
The shrouded Tuna is one of Seiko's great industrial designs, and the Street Series brings it within easy reach with a light-powered movement and a textured plastic shroud. At 12 mm thick it is also far slimmer than its 46.7 mm width suggests.
Watch DNA. Filled tags are editorial; outlined tags come from the specifications.
The numbers
Verified specificationsSize
- Diameter
- 46.7mm
- Lug to lug
- 46.1mm
- Thickness
- 12mm
- Lug width
- 22mm
Because you like this…
Chosen for shape, size, colour, character and price. Rarely the same brand twice.
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About this page
Verified specifications, checked September 2026
Dimensions, water resistance, movement and crystal were checked against the sources below.
Seiko lists the case as 'stainless steel and plastic' and the crystal as Hardlex (Worn & Wound says mineral). Launch per Worn & Wound, Nov 2019.
The illustration is a bezelga rendering generated from the specifications. It is not a photograph and may simplify details such as logos, text and finishing.
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