Seiko Cal. 3879 - 300

The Seiko 3879-300 represents an important milestone in Seiko's 1986 lineup. With its 19mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-2d42dda1c3ad]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1986

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