Seiko Cal. 4550 - 600

This Hand-Winding model from 1979 features a 40mm Titanium case. With its 21mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-fd215a9c90e5]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1979

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