Seiko Cal. 6647 - 818

This Automatic model from 1970 features a 45mm PVD Black case. Powered by the 6647 caliber with 31j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-5fcc7af8df69]

Also known as: World Timer, Flighty

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1970

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