Seiko Cal. 4597 - 156

The Seiko 4597-156 represents an important milestone in Seiko's 1976 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-0a29ccf5da60]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Burgundy

Jewels

28j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1976

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