Seiko Cal. 6630 - 641

This Quartz model from 1970 features a 36mm Titanium case. Powered by the 6630 caliber with 26j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-9c8dd59a8744]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

White

Jewels

26j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1970

Related Models

• Seiko 5247-642
• Seiko 7186-285
• Seiko 4595-494
• Seiko 5671-969
• Seiko 6372-316
• Seiko 6351-600
• Seiko 4561-638
• Seiko 4442-808
• Seiko 5689-478
• Seiko 6228-718
• Seiko 6213-899
• Seiko 6120-164