Seiko Cal. 6665 - 523

The Seiko 6665-523 represents an important milestone in Seiko's 1979 lineup. Powered by the 6665 caliber with 25j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-bd6e2c5e82af]

Also known as: Silverwave, Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1979

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