Seiko Cal. 6378 - 463

The Seiko 6378-463 represents an important milestone in Seiko's 1981 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-b174b13ea63c]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Cream

Jewels

24j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1981

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