Seiko Cal. 6688 - 712

This Quartz model from 1976 features a 34mm Titanium case. Powered by the 6688 caliber with 33j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-bb846f2c5561]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

34mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1976

Related Models

• Seiko 5627-283
• Seiko 6288-583
• Seiko 6131-175
• Seiko 7071-158
• Seiko 6114-795
• Seiko 7182-648
• Seiko 5622-572
• Seiko 0774-169
• Seiko 5229-522
• Seiko 7182-675
• Seiko 5689-661
• Seiko 4461-219