Seiko Cal. 6639 - 587

The Seiko 6639-587 represents an important milestone in Seiko's 1987 lineup. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-2bcb1dcf17ae]

Also known as: Pogue, Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1987

Related Models

• Seiko 3830-222
• Seiko 4455-209
• Seiko 7061-889
• Seiko 5220-826
• Seiko 0712-953
• Seiko 6391-135
• Seiko 6636-630
• Seiko 3836-266
• Seiko 6140-658
• Seiko 5618-854
• Seiko 7019-433
• Seiko 0758-589