Seiko Cal. 0728 - 856

This Spring Drive model from 1983 features a 36mm Two-Tone case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-c854eafec4cd]

Also known as: Navigator, Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1983

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