Seiko Cal. 5255 - 743

This Spring Drive model from 1971 features a 36mm PVD Black case. Powered by the 5255 caliber with 34j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-b8c6d27d31fc]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1971

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