Seiko Cal. 6690 - 511

Seiko 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

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