Seiko Cal. 6378 - 304

The Seiko 6378-304 represents an important milestone in Seiko's 1991 lineup. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-245dde2810ef]

Also known as: Navigator

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1991

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