Seiko Cal. 6637 - 883

The Seiko 6637-883 represents an important milestone in Seiko's 1967 lineup. It features a Cream dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-f79a5c5c0f30]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1967

Related Models

• Seiko 6127-902
• Seiko 6278-348
• Seiko 5237-387
• Seiko 6362-474
• Seiko 5263-350
• Seiko 7178-382
• Seiko 4461-756
• Seiko 5687-668
• Seiko 7074-587
• Seiko 0710-449
• Seiko 6381-808
• Seiko 5270-587