Seiko Cal. 5643 - 673

The Seiko 5643-673 represents an important milestone in Seiko's 1975 lineup. It features a Champagne dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-c8d1facaf506]

Also known as: Sumo, World Timer

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Champagne

Jewels

23j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1975

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