Seiko Cal. 4577 - 375

The Seiko 4577-375 represents an important milestone in Seiko's 1989 lineup. Powered by the 4577 caliber with 33j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-7ddad33e58af]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1989

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