Seiko Cal. 7166 - 391

The 7166-391 is a sought-after Quartz piece from Seiko's golden era. Powered by the 7166 caliber with 17j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-61780a19a5c0]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1971

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