Seiko Cal. 7177 - 513

This Spring Drive model from 1982 features a 34mm Two-Tone case. Powered by the 7177 caliber with 18j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-4a62be261b48]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Cream

Jewels

18j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1982

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