Seiko Cal. 6378 - 686

The Seiko 6378-686 represents an important milestone in Seiko's 1998 lineup. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-c250b3c3cdba]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Cream

Jewels

36j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1998

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