Seiko Cal. 0731 - 375

Seiko 0731-375

The Seiko 0731-375 represents an important milestone in Seiko's 1967 lineup. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-5e964fe09881]

Also known as: Samurai, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
8.9mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
140m
Dial Color
Black
Jewels
17j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1967

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