Seiko Cal. 6687 - 523

The Seiko 6687-523 represents an important milestone in Seiko's 1991 lineup. It features a Champagne dial protected by a Hardlex crystal and offers 190m of water resistance. [seikata-wm-3076ea26b832]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1991

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