Seiko Cal. 5661 - 433

This Quartz model from 1981 features a 35mm PVD Black case. Powered by the 5661 caliber with 21j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-5fbb90f748fc]

Also known as: Turtle

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1981

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