Seiko Cal. 5677 - 494

This Automatic model from 1974 features a 40mm Titanium case. Powered by the 5677 caliber with 21j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-55e5aa3ddb58]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1974

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