Seiko Cal. 6638 - 517

This Automatic model from 1994 features a 37mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-71f81be0bb6c]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1994

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