Seiko Cal. 5635 - 425

The 5635-425 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-9d464a32f685]

Also known as: Helmet, UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1982

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