Seiko Cal. 5643 - 633

The Seiko 5643-633 represents an important milestone in Seiko's 1973 lineup. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-dbc9c63ae8e2]

Also known as: Arnie

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

42mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1973

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