Seiko Cal. 7120 - 617

The Seiko 7120-617 represents an important milestone in Seiko's 1971 lineup. Powered by the 7120 caliber with 32j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-87b30eec93f1]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1971

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