Seiko Cal. 6638 - 491

This Automatic model from 1984 features a 41mm Titanium case. It features a Green dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-2086d193b87f]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1984

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