Seiko Cal. 0740 - 231

The Seiko 0740-231 represents an important milestone in Seiko's 1985 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-9d9626674ab1]

Also known as: Turtle, Shogun

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1985

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