Seiko Cal. 6390 - 632

The 6390-632 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6390 caliber with 22j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-d8e8195ffaa8]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1967

Related Models

• Seiko 5237-654
• Seiko 6283-368
• Seiko 7192-448
• Seiko 4546-830
• Seiko 7150-685
• Seiko 6215-650
• Seiko 7048-545
• Seiko 0722-337
• Seiko 7158-364
• Seiko 6150-372
• Seiko 5669-526
• Seiko 6256-133