Seiko Cal. 6663 - 890

This Spring Drive model from 1988 features a 39mm Hardlex-Coated Steel case. It features a Navy dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-a84fa842b9a2]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1988

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