Seiko Cal. 6661 - 710

The Seiko 6661-710 represents an important milestone in Seiko's 1998 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-71c6475181f7]

Also known as: Bullhead, World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1998

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