Seiko Cal. 7131 - 617

The Seiko 7131-617 represents an important milestone in Seiko's 1966 lineup. It features a Green dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-2c6c82ddde5a]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1966

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