Seiko Cal. 7170 - 491

The 7170-491 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7170 caliber with 26j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-d9cf858a35bc]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1976

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