Seiko Cal. 3878 - 575

The Seiko 3878-575 represents an important milestone in Seiko's 1970 lineup. Powered by the 3878 caliber with 25j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-904e5baa2a25]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1970

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