Seiko Cal. 5218 - 140

This Hand-Winding model from 1971 features a 37mm Gold-Plated case. Powered by the 5218 caliber with 20j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-aa7ca48a2d68]

Also known as: Tuna, Navigator

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1971

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