Seiko Cal. 3871 - 666

The Seiko 3871-666 represents an important milestone in Seiko's 1971 lineup. It features a Green dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-dc78fa572463]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1971

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