Seiko Cal. 6638 - 375

The Seiko 6638-375 represents an important milestone in Seiko's 1991 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-0bf942e9d1a6]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

26j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1991

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