Seiko Cal. 4593 - 866

The Seiko 4593-866 represents an important milestone in Seiko's 1970 lineup. Powered by the 4593 caliber with 18j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-3767c7328fb5]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1970

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