Seiko Cal. 4427 - 701

The Seiko 4427-701 represents an important milestone in Seiko's 1975 lineup. With its 21mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-a500802a7f44]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1975

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