Seiko Cal. 6647 - 903

This Hand-Winding model from 1966 features a 43mm Hardlex-Coated Steel case. Powered by the 6647 caliber with 23j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-a2fba8d4b5bc]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1966

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