Seiko Cal. 0731 - 390

The Seiko 0731-390 represents an important milestone in Seiko's 1982 lineup. It features a White dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-32e7302272c9]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1982

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