Seiko Cal. 6639 - 559

The Seiko 6639-559 represents an important milestone in Seiko's 1990 lineup. It features a Silver dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-a45bf1f8e710]

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1990

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