Seiko Cal. 6670 - 284

The Seiko 6670-284 represents an important milestone in Seiko's 1967 lineup. Powered by the 6670 caliber with 31j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-72ca4bfde84b]

Also known as: Monster, Flighty

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1967

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