Seiko Cal. 3840 - 903

The Seiko 3840-903 represents an important milestone in Seiko's 1992 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-0aa024df9b0c]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1992

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