Seiko Cal. 6638 - 384

The Seiko 6638-384 represents an important milestone in Seiko's 1984 lineup. Powered by the 6638 caliber with 24j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-fa8f535a15f2]

Also known as: Samurai

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1984

Related Models

• Seiko 5236-578
• Seiko 6398-714
• Seiko 0732-651
• Seiko 6667-250
• Seiko 7077-698
• Seiko 6641-348
• Seiko 4458-622
• Seiko 5686-209
• Seiko 6178-155
• Seiko 7147-902
• Seiko 0798-674
• Seiko 6132-384