Seiko Cal. 6637 - 483

The Seiko 6637-483 represents an important milestone in Seiko's 1981 lineup. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-2b57ebe856f0]

Also known as: Samurai, Sea Horse

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1981

Related Models

• Seiko 6148-647
• Seiko 5210-472
• Seiko 3884-159
• Seiko 7056-720
• Seiko 7033-740
• Seiko 6655-224
• Seiko 0715-233
• Seiko 5618-127
• Seiko 6657-130
• Seiko 3870-287
• Seiko 7120-357
• Seiko 3880-726