Seiko Cal. 7187 - 773

The 7187-773 is a sought-after Solar piece from Seiko's golden era. Powered by the 7187 caliber with 17j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-4e2de8669fbb]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1971

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