Seiko Cal. 5638 - 439

Released in 1997, the Cal. 5638 with design code 439 was part of Seiko's domestic market collection. With its 18mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-fab021ebf5e6]

Also known as: Flighty

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1997

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