Seiko Cal. 6639 - 929

Released in 1979, the Cal. 6639 with design code 929 was part of Seiko's domestic market collection. It features a White dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-47b65ca5ef97]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1979

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