Seiko Cal. 6633 - 748

The 6633-748 is a sought-after Quartz piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-90a70b4dcc83]

Also known as: Sumo, Flighty

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1997

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