Seiko Cal. 6687 - 307

This Automatic model from 1980 features a 34mm PVD Black case. Powered by the 6687 caliber with 31j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-3f0ff3040bfc]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

31j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1980

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