Seiko Cal. 5251 - 220

This Spring Drive model from 1968 features a 43mm Gold-Plated case. Powered by the 5251 caliber with 29j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-2370926e27cc]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1968

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