Seiko Cal. 7021 - 825

The Seiko 7021-825 represents an important milestone in Seiko's 1975 lineup. Powered by the 7021 caliber with 36j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-cd4afdbcf923]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1975

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