Seiko Cal. 6366 - 143

This Spring Drive model from 1967 features a 41mm Hardlex-Coated Steel case. Powered by the 6366 caliber with 33j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-a1d80c27a989]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1967

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