Seiko Cal. 7171 - 739

The 7171-739 is a sought-after Solar piece from Seiko's golden era. Powered by the 7171 caliber with 31j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-26700ba1587e]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1970

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