Seiko Cal. 6647 - 601

This Spring Drive model from 1971 features a 38mm Titanium case. Powered by the 6647 caliber with 31j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-3ac45712342b]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1971

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