Seiko Cal. 5646 - 663

The Seiko 5646-663 represents an important milestone in Seiko's 1976 lineup. It features a White dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-69f45f04c006]

Also known as: Rally, Arnie

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1976

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