Seiko Cal. 7031 - 734

Seiko 7031-734

The 7031-734 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-aef16f7f4337]

Also known as: Tuna, World Timer

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
39mm
Case Thickness
9.8mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
80m
Dial Color
Black
Jewels
17j
Frequency
36,000 bph
Power Reserve
36 hours
Year
1977

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