Seiko Cal. 6638 - 565

The Seiko 6638-565 represents an important milestone in Seiko's 1999 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-cfe7ec5d622a]

Also known as: Emperor, Flighty

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

34j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1999

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