Seiko Cal. 3879 - 727

The Seiko 3879-727 represents an important milestone in Seiko's 1984 lineup. With its 20mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-fcdf6c5bc022]

Also known as: Helmet, Rally

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1984

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