Seiko Cal. 6635 - 418

The 6635-418 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6635 caliber with 33j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-01b0948af398]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1995

Related Models

• Seiko 7086-856
• Seiko 4561-816
• Seiko 7074-308
• Seiko 4524-332
• Seiko 4455-997
• Seiko 6124-913
• Seiko 5298-388
• Seiko 6648-398
• Seiko 0741-474
• Seiko 3836-249
• Seiko 6395-928
• Seiko 6210-590