Seiko Cal. 6647 - 862

The 6647-862 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6647 caliber with 27j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-f2f82b0ca146]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1966

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