Seiko Cal. 7021 - 731

The Seiko 7021-731 represents an important milestone in Seiko's 1983 lineup. Powered by the 7021 caliber with 29j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-f5c48bc15741]

Also known as: Arnie

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1983

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