Seiko Cal. 6688 - 921

The Seiko 6688-921 represents an important milestone in Seiko's 1975 lineup. Powered by the 6688 caliber with 33j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-7991c74217b0]

Also known as: Rally, World Timer

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1975

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