Seiko Cal. 6637 - 739

Released in 1998, the Cal. 6637 with design code 739 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-7776003ad9ee]

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1998

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