Seiko Cal. 3817 - 818

The Seiko 3817-818 represents an important milestone in Seiko's 1969 lineup. It features a Silver dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-879c09cefdc5]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1969

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