Seiko Cal. 7028 - 441

Seiko 7028-441

The Seiko 7028-441 represents an important milestone in Seiko's 1978 lineup. With its 22mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-d38e93ba36f1]

Also known as: Sumo, Helmet

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
41mm
Case Thickness
14.6mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
170m
Dial Color
Black
Jewels
24j
Frequency
36,000 bph
Power Reserve
43 hours
Year
1978

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