Seiko Cal. 3871 - 694

The Seiko 3871-694 represents an important milestone in Seiko's 1975 lineup. With its 19mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-8d04056411bc]

Also known as: Crown, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1975

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