Seiko Cal. 6639 - 591

The Seiko 6639-591 represents an important milestone in Seiko's 1989 lineup. Powered by the 6639 caliber with 24j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-497093f0a725]

Also known as: Shogun

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

46mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1989

Related Models

• Seiko 7153-705
• Seiko 5285-905
• Seiko 5625-880
• Seiko 6317-920
• Seiko 3852-401
• Seiko 6653-182
• Seiko 6122-906
• Seiko 4479-789
• Seiko 0784-178
• Seiko 6152-730
• Seiko 7073-983
• Seiko 6154-992