Seiko Cal. 7172 - 857

The 7172-857 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7172 caliber with 31j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-7bc317cad210]

Also known as: Shogun

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1975

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