Seiko Cal. 5633 - 645

The Seiko 5633-645 represents an important milestone in Seiko's 1965 lineup. The Fixed bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-96047ab4c9aa]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1965

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