Seiko Cal. 5639 - 830

The Seiko 5639-830 represents an important milestone in Seiko's 1985 lineup. Powered by the 5639 caliber with 34j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-be2d27eb8fc1]

Also known as: Monster, Silverwave

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

34j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1985

Related Models

• Seiko 4520-754
• Seiko 4415-284
• Seiko 6137-257
• Seiko 7143-230
• Seiko 4518-744
• Seiko 6134-797
• Seiko 6671-761
• Seiko 3894-841
• Seiko 0735-809
• Seiko 5656-575
• Seiko 6247-911
• Seiko 7063-803