Seiko Cal. 6644 - 632

The Seiko 6644-632 represents an important milestone in Seiko's 1969 lineup. Powered by the 6644 caliber with 26j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-455be0a00761]

Also known as: Rally, Arnie

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1969

Related Models

• Seiko 7153-346
• Seiko 6148-487
• Seiko 6662-569
• Seiko 6165-938
• Seiko 6698-838
• Seiko 4564-633
• Seiko 5624-319
• Seiko 4523-392
• Seiko 7176-996
• Seiko 4483-577
• Seiko 0728-927
• Seiko 6337-982