Seiko Cal. 6639 - 186

This Spring Drive model from 1999 features a 46mm PVD Black case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-79f2745a9990]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1999

Related Models

• Seiko 6629-864
• Seiko 6275-452
• Seiko 0786-410
• Seiko 7188-159
• Seiko 4572-952
• Seiko 5248-253
• Seiko 3810-891
• Seiko 5612-242
• Seiko 5627-946
• Seiko 6195-819
• Seiko 5279-777
• Seiko 5638-549