Seiko Cal. 5690 - 539

The Seiko 5690-539 represents an important milestone in Seiko's 1988 lineup. It features a Green dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-a5bcd5b878b3]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1988

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