Seiko Cal. 5639 - 255

Released in 1981, the Cal. 5639 with design code 255 was part of Seiko's domestic market collection. Powered by the 5639 caliber with 32j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-e50af79d6d65]

Also known as: Rally, Crown

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1981

Related Models

• Seiko 6283-596
• Seiko 6393-662
• Seiko 5247-459
• Seiko 5674-304
• Seiko 4530-584
• Seiko 6377-882
• Seiko 6348-371
• Seiko 4538-731
• Seiko 6252-250
• Seiko 6313-861
• Seiko 7143-810
• Seiko 6320-943