Seiko Cal. 5661 - 379

The Seiko 5661-379 represents an important milestone in Seiko's 1986 lineup. It features a Navy dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-aa6e1819ed0b]

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1986

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