Seiko Cal. 3871 - 749

The Seiko 3871-749 represents an important milestone in Seiko's 1973 lineup. Powered by the 3871 caliber with 29j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-18b532fab659]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1973

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