Seiko Cal. 3861 - 666

This Spring Drive model from 1987 features a 37mm Two-Tone case. It features a Burgundy dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-fea87d1fbc83]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1987

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