Seiko Cal. 6688 - 230

This Kinetic model from 1978 features a 41mm PVD Black case. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-2e0465c6a2a3]

Also known as: Helmet, Sea Horse

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1978

Related Models

• Seiko 6388-500
• Seiko 0799-245
• Seiko 0737-665
• Seiko 3823-435
• Seiko 6142-141
• Seiko 5675-249
• Seiko 0797-732
• Seiko 4558-882
• Seiko 7157-375
• Seiko 5640-109
• Seiko 4510-446
• Seiko 6216-771