Seiko Cal. 6643 - 226

This Spring Drive model from 1990 features a 38mm Titanium case. It features a Champagne dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-edae30ce316e]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Champagne

Jewels

34j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1990

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