Seiko Cal. 7163 - 728

The 7163-728 is a sought-after Hand-Winding piece from Seiko's golden era. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-d4dfe4551afc]

Also known as: Helmet, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1977

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