Seiko Cal. 7187 - 342

The 7187-342 is a sought-after Quartz piece from Seiko's golden era. Powered by the 7187 caliber with 24j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-5f5badae8dc3]

Also known as: Sumo, Arnie

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1997

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