Seiko Cal. 3815 - 188

The Seiko 3815-188 represents an important milestone in Seiko's 1967 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-b9d8fab0f7cc]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1967

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