Seiko Cal. 6640 - 382

The Seiko 6640-382 represents an important milestone in Seiko's 1998 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-ca30d7341c15]

Also known as: Tuna, Rally

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1998

Related Models

• Seiko 4480-989
• Seiko 0736-568
• Seiko 4562-692
• Seiko 6624-797
• Seiko 0735-542
• Seiko 4447-223
• Seiko 4445-903
• Seiko 7122-180
• Seiko 3870-173
• Seiko 5621-678
• Seiko 6631-135
• Seiko 4450-343