Seiko Cal. 6639 - 543

Released in 1982, the Cal. 6639 with design code 543 was part of Seiko's domestic market collection. It features a White dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-ff98bcb90686]

Also known as: Monster, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1982

Related Models

• Seiko 5619-585
• Seiko 6258-542
• Seiko 7075-382
• Seiko 4485-328
• Seiko 6324-820
• Seiko 0713-101
• Seiko 5628-693
• Seiko 6136-507
• Seiko 7061-714
• Seiko 0740-102
• Seiko 0795-498
• Seiko 6246-632