Seiko Cal. 6279 - 421

This Hand-Winding model from 1971 features a 40mm Hardlex-Coated Steel case. Powered by the 6279 caliber with 20j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-d521c1a1165a]

Also known as: Helmet, Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1971

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