Seiko Cal. 6654 - 570

The Seiko 6654-570 represents an important milestone in Seiko's 1971 lineup. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-282402244e0c]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1971

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