Seiko Cal. 3888 - 153

The Seiko 3888-153 represents an important milestone in Seiko's 1970 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-1ee6ef818ac9]

Also known as: Helmet, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1970

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