Seiko Cal. 5656 - 147

This Automatic model from 1975 features a 37mm Titanium case. It features a Green dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-983501795549]

Also known as: Tuna, Silverwave

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1975

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