Seiko Cal. 5631 - 774

This Quartz model from 1977 features a 46mm Titanium case. Powered by the 5631 caliber with 24j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-a8b96d4f7f33]

Also known as: Turtle

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

46mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1977

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