Seiko Cal. 7028 - 639

This Quartz model from 1984 features a 40mm Gold-Plated case. Powered by the 7028 caliber with 24j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-8e8ec7a7e0f9]

Also known as: Helmet, Navigator

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1984

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