Seiko Cal. 6644 - 322

This Quartz model from 1988 features a 44mm Hardlex-Coated Steel case. Powered by the 6644 caliber with 24j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-c23b8afac934]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1988

Related Models

• Seiko 6643-473
• Seiko 4533-745
• Seiko 7181-527
• Seiko 5216-631
• Seiko 6158-477
• Seiko 6331-464
• Seiko 5271-220
• Seiko 7062-424
• Seiko 5218-954
• Seiko 6364-760
• Seiko 7098-511
• Seiko 6197-216