Seiko Cal. 7155 - 312

Seiko 7155-312

The 7155-312 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7155 caliber with 18j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-32e0ab6fafe5]

Also known as: Arnie

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
37mm
Case Thickness
14.3mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Black
Jewels
18j
Frequency
36,000 bph
Power Reserve
42 hours
Year
1973

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