Seiko Cal. 3870 - 414

The Seiko 3870-414 represents an important milestone in Seiko's 1990 lineup. Powered by the 3870 caliber with 17j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-0557e512e85d]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1990

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