Seiko Cal. 3815 - 825

The Seiko 3815-825 represents an important milestone in Seiko's 1978 lineup. With its 21mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-40a219220075]

Also known as: Sumo, Pogue

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1978

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