Seiko Cal. 7186 - 715

The Seiko 7186-715 represents an important milestone in Seiko's 1979 lineup. Powered by the 7186 caliber with 20j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-d0d9fda5057a]

Also known as: Monster, Sumo

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1979

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