Seiko Cal. 3820 - 701

The Seiko 3820-701 represents an important milestone in Seiko's 1978 lineup. With its 21mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-56e5d2eabc60]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1978

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