Seiko Cal. 7133 - 731

Seiko 7133-731

The Seiko 7133-731 represents an important milestone in Seiko's 1976 lineup. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-1e8bac884039]

Also known as: Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
36mm
Case Thickness
8.1mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
160m
Dial Color
Navy
Jewels
18j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1976

Related Models

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