Seiko Cal. 6163 - 789

The Seiko 6163-789 represents an important milestone in Seiko's 1966 lineup. Powered by the 6163 caliber with 28j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-8eff05509ada]

Also known as: Sumo, Goldfeather

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1966

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