Seiko Cal. 6638 - 463

This Spring Drive model from 1999 features a 40mm Titanium case. With its 22mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-4d21b7893fd5]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1999

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