Seiko Cal. 3812 - 991

The Seiko 3812-991 represents an important milestone in Seiko's 1968 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-70eef2b958f9]

Also known as: Turtle, Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1968

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