Seiko Cal. 6660 - 691

Released in 1990, the Cal. 6660 with design code 691 was part of Seiko's domestic market collection. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-ede28036aba3]

Also known as: Pogue

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

36j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1990

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