Seiko Cal. 6646 - 336

The Seiko 6646-336 represents an important milestone in Seiko's 1983 lineup. It features a Silver dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-f0713f8bd6ca]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1983

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