Seiko Cal. 7178 - 518

The 7178-518 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7178 caliber with 35j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-4bc11cd8f6f4]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1971

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