Seiko Cal. 6667 - 304

The Seiko 6667-304 represents an important milestone in Seiko's 1970 lineup. Powered by the 6667 caliber with 20j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-dac9ecad6f17]

Also known as: Tuna, Bullhead

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1970

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