Seiko Cal. 5639 - 990

The Seiko 5639-990 represents an important milestone in Seiko's 1990 lineup. With its 21mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-f31769d7e3e1]

Also known as: Rally, Arnie

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1990

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