Seiko Cal. 5270 - 511

This Hand-Winding model from 1974 features a 43mm Stainless Steel case. Powered by the 5270 caliber with 31j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-0728946cac6a]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1974

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