Seiko Cal. 3886 - 637

This Automatic model from 1968 features a 44mm Two-Tone case. It features a Green dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-15a76b0b11e3]

Also known as: Monster, Goldfeather

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1968

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