Seiko Cal. 7187 - 177

Released in 1978, the Cal. 7187 with design code 177 was part of Seiko's domestic market collection. It features a Black dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-6cdf2fadbcde]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1978

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