Seiko Cal. 6390 - 280

This Hand-Winding model from 1966 features a 43mm Stainless Steel case. With its 21mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-b2773cdc51c7]

Also known as: Helmet, Rally

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1966

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