Seiko Cal. 6688 - 354

The Seiko 6688-354 represents an important milestone in Seiko's 1966 lineup. Powered by the 6688 caliber with 23j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-b0fea4af1697]

Also known as: Navigator

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1966

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