Seiko Cal. 4543 - 636

The 4543-636 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-8be1ae1d7387]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Cream

Jewels

20j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1980

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