Seiko Cal. 5677 - 722

This Automatic model from 1973 features a 46mm Titanium case. It features a Green dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-5536ba325ef3]

Also known as: Sumo, Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1973

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