Seiko Cal. 6231 - 720

The Seiko 6231-720 represents an important milestone in Seiko's 1980 lineup. Powered by the 6231 caliber with 30j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-757bf93147f8]

Also known as: Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1980

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