Seiko Cal. 6379 - 637

The Seiko 6379-637 represents an important milestone in Seiko's 1975 lineup. With its 18mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-87ce375cc96f]

Also known as: Tuna, Pogue

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1975

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