Seiko Cal. 3831 - 674

The Seiko 3831-674 represents an important milestone in Seiko's 1983 lineup. With its 19mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-14c97649d25d]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1983

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