Seiko Cal. 6635 - 432

The Seiko 6635-432 represents an important milestone in Seiko's 1972 lineup. It features a Navy dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-06b8bdecb97a]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1972

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