Seiko Cal. 6635 - 200

The Seiko 6635-200 represents an important milestone in Seiko's 1987 lineup. With its 20mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-df1873269c30]

Also known as: UFO, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1987

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