Seiko Cal. 6638 - 432

The Seiko 6638-432 represents an important milestone in Seiko's 1981 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-06a40abd48de]

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1981

Related Models

• Seiko 4524-681
• Seiko 0755-634
• Seiko 3865-502
• Seiko 0774-903
• Seiko 5233-656
• Seiko 5215-858
• Seiko 6653-264
• Seiko 4477-376
• Seiko 6111-238
• Seiko 6649-315
• Seiko 5620-617
• Seiko 5247-383