Seiko Cal. 3871 - 616

This Quartz model from 1968 features a 34mm PVD Black case. Powered by the 3871 caliber with 20j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-38ec313a7ac7]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1968

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