Seiko Cal. 5256 - 344

This Solar model from 1978 features a 37mm PVD Black case. Powered by the 5256 caliber with 19j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-73180bf92c0e]

Also known as: Helmet, Crown

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1978

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