Seiko Cal. 7187 - 193

The 7187-193 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7187 caliber with 31j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-d51ebb8be1b1]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1978

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