Seiko Cal. 6642 - 721

The 6642-721 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-b42d595d3c26]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

23j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1986

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