Seiko Cal. 3818 - 108

The Seiko 3818-108 represents an important milestone in Seiko's 1980 lineup. It features a Green dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-17099603a768]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1980

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