Seiko Cal. 7173 - 741

The 7173-741 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7173 caliber with 27j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-7fb32d23c122]

Also known as: Sumo, Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1971

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