Seiko Cal. 6665 - 371

The 6665-371 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-4303ec59bbb3]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1979

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