Seiko Cal. 6221 - 528

The Seiko 6221-528 represents an important milestone in Seiko's 1972 lineup. With its 21mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-f1d1cc0f69da]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1972

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