Seiko Cal. 6630 - 590

The 6630-590 is a sought-after Hand-Winding piece from Seiko's golden era. With its 21mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-73b2b4b28109]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1998

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