Seiko Cal. 4491 - 670

The Seiko 4491-670 represents an important milestone in Seiko's 1969 lineup. Powered by the 4491 caliber with 27j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-e7a5932e00b1]

Also known as: Silverwave, Goldfeather

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1969

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