Seiko Cal. 3870 - 924

The Seiko 3870-924 represents an important milestone in Seiko's 1985 lineup. Powered by the 3870 caliber with 19j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-e372c0b18b61]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1985

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