Seiko Cal. 6638 - 182

The Seiko 6638-182 represents an important milestone in Seiko's 1989 lineup. It features a Black dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-f58e4bfb2587]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1989

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