Seiko Cal. 7020 - 171

The 7020-171 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7020 caliber with 21j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-a19183945dca]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1999

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