Seiko Cal. 6151 - 721

The Seiko 6151-721 represents an important milestone in Seiko's 1970 lineup. With its 21mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-beecbadc7dd1]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Champagne

Jewels

26j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1970

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