Seiko Cal. 6638 - 788

The 6638-788 is a sought-after Kinetic piece from Seiko's golden era. It features a White dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-1b8c04faa04f]

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1989

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