Seiko Cal. 4550 - 240

This Spring Drive model from 1985 features a 44mm Hardlex-Coated Steel case. With its 21mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-5756e1719410]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1985

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