Seiko Cal. 7178 - 431

Seiko 7178-431

The Seiko 7178-431 represents an important milestone in Seiko's 1973 lineup. Powered by the 7178 caliber with 34j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-784ae214e8b5]

Also known as: Helmet, Goldfeather

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
43mm
Case Thickness
12.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
70m
Dial Color
White
Jewels
34j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1973

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seikata-wm-784ae214e8b5