Seiko Cal. 5666 - 440

The Seiko 5666-440 represents an important milestone in Seiko's 1991 lineup. It features a Navy dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-1d724b5adcb4]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1991

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