Seiko Cal. 5643 - 448

This Spring Drive model from 1984 features a 40mm PVD Black case. With its 20mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-4a204bb45a5f]

Also known as: Silverwave, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1984

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