Seiko Cal. 6640 - 485

This Automatic model from 1970 features a 34mm Stainless Steel case. It features a Burgundy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-8516fd43f2da]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1970

Related Models

• Seiko 6675-684
• Seiko 6184-987
• Seiko 7193-680
• Seiko 0788-779
• Seiko 5213-906
• Seiko 6680-661
• Seiko 5226-980
• Seiko 4469-313
• Seiko 5219-480
• Seiko 4536-266
• Seiko 5637-821
• Seiko 6219-771