Seiko Cal. 0764 - 221

The Seiko 0764-221 represents an important milestone in Seiko's 1970 lineup. With its 19mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-ef8b88d56e8b]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1970

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