Seiko Cal. 4577 - 490

The Seiko 4577-490 represents an important milestone in Seiko's 1997 lineup. With its 20mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-616ec9be06ee]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1997

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