Seiko Cal. 7040 - 660

This Spring Drive model from 1981 features a 37mm PVD Black case. Powered by the 7040 caliber with 26j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-297423308d55]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1981

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