Seiko Cal. 6638 - 503

This Quartz model from 1983 features a 36mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-fff650fd4647]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1983

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