Seiko Cal. 4577 - 541

The Seiko 4577-541 represents an important milestone in Seiko's 1980 lineup. Powered by the 4577 caliber with 18j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-b7332f9bc265]

Also known as: Sumo, Silverwave

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1980

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