Seiko Cal. 6387 - 690

The Seiko 6387-690 represents an important milestone in Seiko's 1992 lineup. Powered by the 6387 caliber with 25j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-466f3c296525]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1992

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