Seiko Cal. 5256 - 255

The 5256-255 is a sought-after Solar piece from Seiko's golden era. Powered by the 5256 caliber with 23j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-5390f142c1ca]

Also known as: Helmet, Emperor

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1977

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