Seiko Cal. 7163 - 973

The Seiko 7163-973 represents an important milestone in Seiko's 1987 lineup. Powered by the 7163 caliber with 26j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-27eda7a3b5d7]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1987

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