Seiko Cal. 3820 - 320

The Seiko 3820-320 represents an important milestone in Seiko's 1981 lineup. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-7fa7efee3278]

Also known as: Navigator, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1981

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