Seiko Cal. 7031 - 983

The 7031-983 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7031 caliber with 24j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-0366174ee283]

Also known as: Helmet, UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1999

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