Seiko Cal. 6661 - 106

The Seiko 6661-106 represents an important milestone in Seiko's 1975 lineup. It features a Black dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-8dc83cd2d8ce]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1975

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