Seiko Cal. 5664 - 541

The 5664-541 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-3afc008b110c]

Also known as: Sea Horse, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1974

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