Seiko Cal. 4577 - 243

The Seiko 4577-243 represents an important milestone in Seiko's 1991 lineup. Powered by the 4577 caliber with 23j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-1540d4043063]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1991

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