Seiko Cal. 4577 - 235

This Hand-Winding model from 1965 features a 34mm Hardlex-Coated Steel case. Powered by the 4577 caliber with 21j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-7f2f469e6041]

Also known as: Crown, Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1965

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