Seiko Cal. 7155 - 231

Seiko 7155-231

The 7155-231 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-996186ad7efd]

Also known as: Tuna, Arnie

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
46mm
Case Thickness
15.5mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Green
Jewels
31j
Frequency
28,800 bph
Power Reserve
59 hours
Year
1981

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