Seiko Cal. 5698 - 648

The 5698-648 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-e3949653f8dc]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1979

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