Seiko Cal. 7021 - 691

Released in 1974, the Cal. 7021 with design code 691 was part of Seiko's domestic market collection. Powered by the 7021 caliber with 29j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-ad500184cb2f]

Also known as: Bullhead, World Timer

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1974

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