Seiko Cal. 5688 - 669

The Seiko 5688-669 represents an important milestone in Seiko's 1976 lineup. It features a Green dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-8d5587e7fe6e]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1976

Related Models

• Seiko 6224-299
• Seiko 0774-838
• Seiko 6162-778
• Seiko 6394-956
• Seiko 5671-654
• Seiko 7158-377
• Seiko 5287-297
• Seiko 5663-827
• Seiko 3831-783
• Seiko 6314-497
• Seiko 7028-231
• Seiko 5661-210