Seiko Cal. 6671 - 675

The 6671-675 is a sought-after Spring Drive piece from Seiko's golden era. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-c973da7cca74]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1987

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