Seiko Cal. 5278 - 552

The 5278-552 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5278 caliber with 24j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-6fa1d3aae684]

Also known as: Helmet, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1967

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