Seiko Cal. 7163 - 993

The Seiko 7163-993 represents an important milestone in Seiko's 1988 lineup. Powered by the 7163 caliber with 33j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-adab5e82c67a]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1988

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