Seiko Cal. 6674 - 999

The Seiko 6674-999 represents an important milestone in Seiko's 1971 lineup. Powered by the 6674 caliber with 21j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-54c9829b0952]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1971

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