Seiko Cal. 6628 - 445

The 6628-445 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-7eacbe1db358]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

35j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1983

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