Seiko Cal. 5687 - 890

The 5687-890 is a sought-after Solar piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-60f1308caa5a]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1983

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