Seiko Cal. 5688 - 326

The 5688-326 is a sought-after Quartz piece from Seiko's golden era. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-213ecff81ec5]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1970

Related Models

• Seiko 6253-733
• Seiko 5625-180
• Seiko 3886-657
• Seiko 7154-741
• Seiko 6265-667
• Seiko 6196-678
• Seiko 3876-380
• Seiko 4543-913
• Seiko 6175-458
• Seiko 0764-228
• Seiko 5226-739
• Seiko 0794-702