Seiko Cal. 5666 - 729

The 5666-729 is a sought-after Quartz piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-00feecbc49dd]

Also known as: Crown, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1969

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