Seiko Cal. 6632 - 243

The Seiko 6632-243 represents an important milestone in Seiko's 1973 lineup. Powered by the 6632 caliber with 18j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-8f6a67b99b2b]

Also known as: Sumo, World Timer

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1973

Related Models

• Seiko 6655-929
• Seiko 3812-475
• Seiko 6326-576
• Seiko 0750-345
• Seiko 6349-227
• Seiko 5279-309
• Seiko 4533-677
• Seiko 6244-969
• Seiko 4444-951
• Seiko 7033-629
• Seiko 6385-924
• Seiko 6212-626