Seiko Cal. 7187 - 290

The Seiko 7187-290 represents an important milestone in Seiko's 1981 lineup. Powered by the 7187 caliber with 36j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-cbf9d98325f9]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1981

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