Seiko Cal. 6644 - 404

The Seiko 6644-404 represents an important milestone in Seiko's 1976 lineup. It features a Black dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-6f71fe65de06]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1976

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