Seiko Cal. 5639 - 492

This Hand-Winding model from 1989 features a 43mm Titanium case. With its 18mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-e0a51def8b9a]

Also known as: Helmet, UFO

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1989

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