Seiko Cal. 0728 - 439

The Seiko 0728-439 represents an important milestone in Seiko's 1986 lineup. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-ec83680c96e3]

Also known as: Navigator, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Cream

Jewels

35j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1986

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