Seiko Cal. 6639 - 951

This Automatic model from 1980 features a 46mm Stainless Steel case. With its 21mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-20d208b55d7a]

Also known as: UFO, Sportsmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1980

Related Models

• Seiko 6124-868
• Seiko 5214-301
• Seiko 6325-321
• Seiko 5666-824
• Seiko 0791-426
• Seiko 6285-351
• Seiko 0787-147
• Seiko 7074-408
• Seiko 6163-907
• Seiko 4468-316
• Seiko 6617-780
• Seiko 6273-888