Seiko Cal. 6378 - 159

The Seiko 6378-159 represents an important milestone in Seiko's 1982 lineup. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-2b00d48ec202]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1982

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