Seiko Cal. 6668 - 635

The Seiko 6668-635 represents an important milestone in Seiko's 1973 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-806d03b12672]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1973

Related Models

• Seiko 6241-560
• Seiko 5297-684
• Seiko 4465-977
• Seiko 7024-296
• Seiko 6197-243
• Seiko 7023-509
• Seiko 4516-531
• Seiko 6343-488
• Seiko 4589-129
• Seiko 6214-481
• Seiko 6188-293
• Seiko 6655-491