Seiko Cal. 6677 - 990

The 6677-990 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6677 caliber with 29j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-bd413ae3fea3]

Also known as: Monster, Silverwave

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1986

Related Models

• Seiko 7020-585
• Seiko 6283-293
• Seiko 7163-673
• Seiko 6250-937
• Seiko 6144-448
• Seiko 0724-604
• Seiko 6182-872
• Seiko 7119-790
• Seiko 7051-390
• Seiko 4490-355
• Seiko 6166-141
• Seiko 4417-609