Seiko Cal. 6630 - 993

The 6630-993 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-ea5eff5e2583]

Also known as: Rally, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1973

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