Seiko Cal. 6646 - 625

The 6646-625 is a sought-after Spring Drive piece from Seiko's golden era. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-7672db24eb49]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1966

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