Seiko Cal. 6630 - 616

The 6630-616 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-dc65da080415]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1967

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