Seiko Cal. 6690 - 511

The 6690-511 is a sought-after Solar piece from Seiko's golden era. Powered by the 6690 caliber with 18j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-51f80aa1629b]

Also known as: Monster, Emperor

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1998

Related Models

• Seiko 4470-607
• Seiko 6233-435
• Seiko 6246-561
• Seiko 3886-806
• Seiko 7165-238
• Seiko 3873-575
• Seiko 6326-353
• Seiko 3887-335
• Seiko 5686-580
• Seiko 6258-666
• Seiko 5265-587
• Seiko 6177-935