Seiko Cal. 6611 - 678

The Seiko 6611-678 represents an important milestone in Seiko's 1972 lineup. Powered by the 6611 caliber with 33j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-e67c99f0963b]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

34mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1972

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