Seiko Cal. 6688 - 934

This Quartz model from 1976 features a 43mm Two-Tone case. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-04a9277a842e]

Also known as: Sumo, Silverwave

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1976

Related Models

• Seiko 4463-807
• Seiko 7135-646
• Seiko 6235-845
• Seiko 7018-391
• Seiko 4418-924
• Seiko 4532-867
• Seiko 4457-388
• Seiko 0785-325
• Seiko 3879-119
• Seiko 6119-362
• Seiko 3867-808
• Seiko 0757-245