Seiko Cal. 6620 - 139

The 6620-139 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6620 caliber with 34j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-c50ed5ddade7]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

38mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

34j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1965

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