Seiko Cal. 7028 - 647

The Seiko 7028-647 represents an important milestone in Seiko's 1977 lineup. It features a Green dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-0476a8a7f2d1]

Also known as: Navigator

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

32j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1977

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