Seiko Cal. 5639 - 140

The Seiko 5639-140 represents an important milestone in Seiko's 1983 lineup. It features a Silver dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-575b549bd514]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

19j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1983

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