Seiko Cal. 5251 - 956

This Spring Drive model from 1978 features a 40mm Hardlex-Coated Steel case. Powered by the 5251 caliber with 27j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-0bdc0c9035f3]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1978

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