Seiko Cal. 6639 - 441

The Seiko 6639-441 represents an important milestone in Seiko's 1965 lineup. With its 21mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-1364fedda113]

Also known as: Crown

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Black

Jewels

34j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1965

Related Models

• Seiko 6359-673
• Seiko 6282-771
• Seiko 5679-979
• Seiko 4523-597
• Seiko 6154-480
• Seiko 5227-471
• Seiko 6142-644
• Seiko 6395-635
• Seiko 7172-327
• Seiko 7081-202
• Seiko 6369-669
• Seiko 6230-483