Seiko Cal. 3831 - 730

The Seiko 3831-730 represents an important milestone in Seiko's 1977 lineup. With its 20mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-b2461ca8ac73]

Also known as: Crown

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

35j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1977

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