Seiko Cal. 6640 - 497

The 6640-497 is a sought-after Automatic piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-adcd07019b3c]

Also known as: Silverwave, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1995

Related Models

• Seiko 6314-676
• Seiko 7084-111
• Seiko 6361-525
• Seiko 6383-211
• Seiko 4486-362
• Seiko 4582-104
• Seiko 6371-516
• Seiko 3811-161
• Seiko 4596-605
• Seiko 6347-721
• Seiko 7095-846
• Seiko 7086-816