Seiko Cal. 4593 - 641

Released in 1976, the Cal. 4593 with design code 641 was part of Seiko's domestic market collection. With its 21mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-02de738978af]

Also known as: Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1976

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