Seiko Cal. 5639 - 171

Released in 1978, the Cal. 5639 with design code 171 was part of Seiko's domestic market collection. With its 22mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-c7e20b9a3092]

Also known as: Panda, UFO

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1978

Related Models

• Seiko 4424-515
• Seiko 5656-230
• Seiko 4489-154
• Seiko 6262-506
• Seiko 4569-169
• Seiko 4432-574
• Seiko 4564-817
• Seiko 4579-194
• Seiko 4435-309
• Seiko 4594-601
• Seiko 7074-281
• Seiko 5290-310