Seiko Cal. 6688 - 535

The Seiko 6688-535 represents an important milestone in Seiko's 1972 lineup. Powered by the 6688 caliber with 22j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-b76d6f466243]

Also known as: Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Cream

Jewels

22j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1972

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