Seiko Cal. 3879 - 903

The Seiko 3879-903 represents an important milestone in Seiko's 1967 lineup. Powered by the 3879 caliber with 25j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-4ade4933699c]

Also known as: Shogun, Crown

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1967

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