Seiko Cal. 3888 - 704

This Spring Drive model from 1990 features a 40mm PVD Black case. It features a Green dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-1f3674ab0382]

Also known as: Turtle, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1990

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