Seiko Cal. 4557 - 636

This Hand-Winding model from 1995 features a 39mm Hardlex-Coated Steel case. With its 19mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-5a94786c26ba]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1995

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