Seiko Cal. 4427 - 671

The Seiko 4427-671 represents an important milestone in Seiko's 1983 lineup. Powered by the 4427 caliber with 30j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-d6678c9e128c]

Also known as: Bullhead, Flighty

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1983

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