Seiko Cal. 6378 - 255

The Seiko 6378-255 represents an important milestone in Seiko's 1979 lineup. With its 20mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-0ec9024478c2]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Cream

Jewels

24j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1979

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