Seiko Cal. 7163 - 339

The Seiko 7163-339 represents an important milestone in Seiko's 1994 lineup. Powered by the 7163 caliber with 30j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-562abd370a1f]

Also known as: Sumo, Bellmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

46mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1994

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