Seiko Cal. 5617 - 131

This Kinetic model from 1975 features a 40mm Two-Tone case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-9fd8f09ddeba]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1975

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