Seiko Cal. 4577 - 936

The Seiko 4577-936 represents an important milestone in Seiko's 1986 lineup. Powered by the 4577 caliber with 33j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-86f99307cb3f]

Also known as: Crown

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1986

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