Seiko Cal. 6639 - 826

Released in 1969, the Cal. 6639 with design code 826 was part of Seiko's domestic market collection. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-fea51ff50118]

Also known as: Panda

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1969

Related Models

• Seiko 6285-177
• Seiko 7094-892
• Seiko 0741-437
• Seiko 6224-304
• Seiko 3883-852
• Seiko 5655-457
• Seiko 6191-148
• Seiko 6692-348
• Seiko 5629-523
• Seiko 6330-734
• Seiko 6158-601
• Seiko 6612-266