Seiko Cal. 6638 - 410

The Seiko 6638-410 represents an important milestone in Seiko's 1973 lineup. It features a Champagne dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-eb9ef59feac8]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Champagne

Jewels

27j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1973

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