Seiko Cal. 4546 - 644

The 4546-644 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-8b36abb9b85a]

Also known as: World Timer, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1965

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