Seiko Cal. 5639 - 854

The 5639-854 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5639 caliber with 22j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-22ad2e4530b5]

Also known as: Sumo, Crown

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1987

Related Models

• Seiko 3817-906
• Seiko 6219-167
• Seiko 6271-241
• Seiko 5263-194
• Seiko 6378-273
• Seiko 7032-798
• Seiko 5274-744
• Seiko 0762-610
• Seiko 7027-299
• Seiko 7133-463
• Seiko 0714-562
• Seiko 6378-806