Seiko Cal. 6378 - 831

The Seiko 6378-831 represents an important milestone in Seiko's 1966 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-0886042b6d0e]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1966

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