Seiko Cal. 6634 - 581

The Seiko 6634-581 represents an important milestone in Seiko's 1976 lineup. It features a Navy dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-608ddb488c4b]

Also known as: Samurai, Crown

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1976

Related Models

• Seiko 6294-753
• Seiko 6610-677
• Seiko 7199-450
• Seiko 4553-250
• Seiko 5683-453
• Seiko 7048-426
• Seiko 4583-190
• Seiko 3863-339
• Seiko 4435-498
• Seiko 5634-901
• Seiko 5250-846
• Seiko 7173-339