Seiko Cal. 4431 - 666

The 4431-666 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4431 caliber with 33j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-d45bcb1a1f55]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1981

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