Seiko Cal. 6648 - 359

The 6648-359 is a sought-after Spring Drive piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-3a30ab9bfc17]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1985

Related Models

• Seiko 3845-547
• Seiko 4551-524
• Seiko 3824-383
• Seiko 7130-301
• Seiko 6626-470
• Seiko 6386-324
• Seiko 6125-376
• Seiko 7092-982
• Seiko 7186-875
• Seiko 4553-448
• Seiko 4591-372
• Seiko 6666-186