Seiko Cal. 7120 - 613

The Seiko 7120-613 represents an important milestone in Seiko's 1977 lineup. Powered by the 7120 caliber with 21j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-65ede908fa1a]

Also known as: Silverwave, Crown

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1977

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