Seiko Cal. 4597 - 641

The Seiko 4597-641 represents an important milestone in Seiko's 1981 lineup. With its 21mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-c998ebe6e2b5]

Also known as: Rally, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1981

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