Seiko Cal. 6641 - 940

This Quartz model from 1971 features a 41mm PVD Black case. Powered by the 6641 caliber with 35j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-20f3c93be62b]

Also known as: Goldfeather

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1971

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