Seiko Cal. 3831 - 956

The Seiko 3831-956 represents an important milestone in Seiko's 1977 lineup. With its 21mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-2cd868250518]

Also known as: Navigator

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Silver

Jewels

22j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1977

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