Seiko Cal. 5639 - 496

This Spring Drive model from 1981 features a 35mm PVD Black case. Powered by the 5639 caliber with 29j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-13312d4ea1a2]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1981

Related Models

• Seiko 5224-330
• Seiko 5293-220
• Seiko 5697-693
• Seiko 5226-614
• Seiko 5299-929
• Seiko 5295-846
• Seiko 6697-182
• Seiko 7188-538
• Seiko 7060-960
• Seiko 6224-955
• Seiko 7144-902
• Seiko 6361-990