Seiko Cal. 7178 - 255

The 7178-255 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7178 caliber with 35j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-0df47cc81050]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1970

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