Seiko Cal. 6378 - 783

The Seiko 6378-783 represents an important milestone in Seiko's 1986 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-fd851e4bca9c]

Also known as: UFO, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1986

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