Seiko Cal. 6658 - 818

The Seiko 6658-818 represents an important milestone in Seiko's 1974 lineup. Powered by the 6658 caliber with 27j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-9fe5e7257c3a]

Also known as: Sea Horse

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1974

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