Seiko Cal. 6638 - 389

This Spring Drive model from 1985 features a 35mm PVD Black case. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-ecfabec65970]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Champagne

Jewels

32j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1985

Related Models

• Seiko 0780-377
• Seiko 0753-868
• Seiko 0791-562
• Seiko 5612-877
• Seiko 4417-133
• Seiko 6659-553
• Seiko 5282-250
• Seiko 3833-923
• Seiko 6233-440
• Seiko 0743-702
• Seiko 0751-473
• Seiko 5299-110