Seiko Cal. 6688 - 747

The Seiko 6688-747 represents an important milestone in Seiko's 1974 lineup. It features a Black dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-b0447435395e]

Also known as: Pogue, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1974

Related Models

• Seiko 6168-629
• Seiko 3834-874
• Seiko 7035-506
• Seiko 6147-194
• Seiko 4433-269
• Seiko 0768-306
• Seiko 6642-716
• Seiko 6379-788
• Seiko 6241-957
• Seiko 6134-880
• Seiko 4562-708
• Seiko 7116-642