Seiko Cal. 6638 - 634

This Quartz model from 1967 features a 36mm Hardlex-Coated Steel case. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-f72112c01565]

Also known as: Goldfeather, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1967

Related Models

• Seiko 4428-456
• Seiko 3864-573
• Seiko 0788-863
• Seiko 6384-724
• Seiko 5221-923
• Seiko 5631-562
• Seiko 7028-337
• Seiko 3810-241
• Seiko 3828-477
• Seiko 7158-865
• Seiko 5290-176
• Seiko 7116-944