Seiko Cal. 5663 - 327

The 5663-327 is a sought-after Quartz piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-b89584e07e9d]

Also known as: Helmet, Navigator

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1988

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