Seiko Cal. 7117 - 987

The 7117-987 is a sought-after Quartz piece from Seiko's golden era. Powered by the 7117 caliber with 30j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-35c63704ad81]

Also known as: Helmet, UFO

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1971

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