Seiko Cal. 6689 - 207

The Seiko 6689-207 represents an important milestone in Seiko's 1974 lineup. Powered by the 6689 caliber with 26j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-cc11279e0a6a]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1974

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