Seiko Cal. 5658 - 644

The 5658-644 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-c0238e5e9228]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1979

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