Seiko Cal. 7031 - 315

Seiko 7031-315

The Seiko 7031-315 represents an important milestone in Seiko's 1975 lineup. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-7d7ece8a5938]

Also known as: Baby Tuna, Flighty

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
43mm
Case Thickness
9.3mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
160m
Dial Color
Champagne
Jewels
17j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1975

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