Seiko Cal. 6620 - 764

The 6620-764 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6620 caliber with 25j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-fdfeb6478f2c]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1965

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