Seiko Cal. 6359 - 637

The Seiko 6359-637 represents an important milestone in Seiko's 1991 lineup. With its 19mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-5e14b159c88a]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1991

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