Seiko Cal. 6663 - 284

The 6663-284 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-b4f722189084]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1986

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