Seiko Cal. 7040 - 427

This Hand-Winding model from 1972 features a 41mm PVD Black case. Powered by the 7040 caliber with 25j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-380016ebfb61]

Also known as: Helmet, Navigator

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1972

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