Seiko Cal. 6688 - 522

This Spring Drive model from 1984 features a 40mm Two-Tone case. It features a Burgundy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-e169427550f5]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1984

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