Seiko Cal. 5691 - 628

The Seiko 5691-628 represents an important milestone in Seiko's 1966 lineup. It features a Green dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-6c62ee00a795]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1966

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