Seiko Cal. 7115 - 778

Seiko 7115-778

The 7115-778 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7115 caliber with 18j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-13e815228ebf]

Also known as: Sumo, Helmet

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
34mm
Case Thickness
8.6mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
200m
Dial Color
White
Jewels
18j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1971

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