Seiko Cal. 7028 - 831

Seiko 7028-831

The 7028-831 is a sought-after Automatic piece from Seiko's golden era. With its 19mm lug width and 13.8mm profile, it sits comfortably on most wrists. [seikata-wm-4a7fb5c90464]

Also known as: Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
13.8mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Blue Sunburst
Jewels
23j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1978

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