Seiko Cal. 5666 - 821

The Seiko 5666-821 represents an important milestone in Seiko's 1986 lineup. It features a Silver dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-3f1412b26c5a]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1986

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