Seiko Cal. 6684 - 972

The Seiko 6684-972 represents an important milestone in Seiko's 1975 lineup. Powered by the 6684 caliber with 33j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-240c45e5f04f]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

44mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1975

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