Seiko Cal. 5648 - 900

The Seiko 5648-900 represents an important milestone in Seiko's 1992 lineup. It features a Black dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-5d3ee5cf8cbe]

Also known as: Sumo, World Timer

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1992

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