Seiko Cal. 7055 - 389

The Seiko 7055-389 represents an important milestone in Seiko's 1980 lineup. Powered by the 7055 caliber with 21j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-dd7aa8b9ee46]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

43mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1980

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