Seiko Cal. 5666 - 840

This Quartz model from 1991 features a 37mm Hardlex-Coated Steel case. Powered by the 5666 caliber with 35j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-9ce41891b186]

Also known as: Crown, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Cream

Jewels

35j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1991

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