Seiko Cal. 3820 - 180

The Seiko 3820-180 represents an important milestone in Seiko's 1965 lineup. With its 21mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-8f895c32e9fa]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1965

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