Seiko Cal. 6690 - 653

This Spring Drive model from 1971 features a 46mm Titanium case. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-c8b603e53481]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1971

Related Models

• Seiko 7143-669
• Seiko 7135-682
• Seiko 7184-471
• Seiko 5282-413
• Seiko 6368-889
• Seiko 6688-407
• Seiko 4441-928
• Seiko 5665-543
• Seiko 6315-922
• Seiko 5277-961
• Seiko 4536-834
• Seiko 6247-277