Seiko Cal. 6628 - 668

The 6628-668 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-2826eae9b42a]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1984

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