Seiko Cal. 6645 - 665

The 6645-665 is a sought-after Spring Drive piece from Seiko's golden era. It features a Champagne dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-0e0dd45918d7]

Also known as: Crown, Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1968

Related Models

• Seiko 4496-383
• Seiko 0712-655
• Seiko 7129-247
• Seiko 6272-318
• Seiko 4557-816
• Seiko 0797-349
• Seiko 4450-839
• Seiko 5232-874
• Seiko 7099-587
• Seiko 6158-322
• Seiko 6231-649
• Seiko 0761-895