Seiko Cal. 6637 - 135

The Seiko 6637-135 represents an important milestone in Seiko's 1972 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-db1aabddbd90]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Burgundy

Jewels

22j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1972

Related Models

• Seiko 6257-857
• Seiko 6635-486
• Seiko 6130-963
• Seiko 5282-294
• Seiko 6617-590
• Seiko 3845-715
• Seiko 6115-786
• Seiko 6611-330
• Seiko 4449-673
• Seiko 0727-364
• Seiko 5258-775
• Seiko 4557-873