Seiko Cal. 6221 - 738

Released in 1970, the Cal. 6221 with design code 738 was part of Seiko's domestic market collection. With its 18mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-418388bb5be7]

Also known as: Monster, Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1970

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