Seiko Cal. 4577 - 704

The Seiko 4577-704 represents an important milestone in Seiko's 1997 lineup. Powered by the 4577 caliber with 21j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-786d8134eff5]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1997

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