Seiko Cal. 5221 - 128

Released in 1971, the Cal. 5221 with design code 128 was part of Seiko's domestic market collection. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-781f85dd8ece]

Also known as: Sumo, Rally

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1971

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