Seiko Cal. 7139 - 897

This Hand-Winding model from 1992 features a 43mm Stainless Steel case. Powered by the 7139 caliber with 33j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-dae7a310e19c]

Also known as: Helmet, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1992

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