Seiko Cal. 4538 - 714

The Seiko 4538-714 represents an important milestone in Seiko's 1973 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-0c59adddc05a]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1973

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