Seiko Cal. 7163 - 569

This Solar model from 1979 features a 36mm Titanium case. Powered by the 7163 caliber with 27j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-a1a20355521f]

Also known as: Sumo, Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1979

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