Seiko Cal. 5666 - 636

The Seiko 5666-636 represents an important milestone in Seiko's 1978 lineup. It features a Champagne dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-f0d9aab58994]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1978

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