Seiko Cal. 6638 - 230

The 6638-230 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6638 caliber with 24j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-ea2e501ceb31]

Also known as: Emperor

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Cream

Jewels

24j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1998

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