Seiko Cal. 6636 - 496

The 6636-496 is a sought-after Quartz piece from Seiko's golden era. It features a White dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-cf96e9919995]

Also known as: Sumo, World Timer

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1987

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