Seiko Cal. 5643 - 813

The 5643-813 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-0c457dd32cca]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1990

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