Seiko Cal. 6171 - 539

The 6171-539 is a sought-after Solar piece from Seiko's golden era. Powered by the 6171 caliber with 20j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-06b3058d2112]

Also known as: Sumo, UFO

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

36mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

20j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1985

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