Seiko Cal. 6688 - 735

Released in 1995, the Cal. 6688 with design code 735 was part of Seiko's domestic market collection. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-690ee33db267]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1995

Related Models

• Seiko 6254-406
• Seiko 7029-756
• Seiko 6618-137
• Seiko 0720-719
• Seiko 7042-392
• Seiko 4464-448
• Seiko 4417-325
• Seiko 7149-225
• Seiko 3837-260
• Seiko 6173-415
• Seiko 6278-582
• Seiko 0739-481