Seiko Cal. 7129 - 540

The Seiko 7129-540 represents an important milestone in Seiko's 1980 lineup. Powered by the 7129 caliber with 25j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-91958e974105]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1980

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