Seiko Cal. 6640 - 154

The Seiko 6640-154 represents an important milestone in Seiko's 1996 lineup. It features a Silver dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-5eb67db13eb8]

Also known as: Shogun

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1996

Related Models

• Seiko 6378-283
• Seiko 6143-663
• Seiko 6342-469
• Seiko 3850-418
• Seiko 0754-653
• Seiko 6358-475
• Seiko 5262-416
• Seiko 5226-682
• Seiko 3839-547
• Seiko 6383-255
• Seiko 7111-435
• Seiko 4435-271