Seiko Cal. 6690 - 488

Seiko 6690-488

The 6690-488 is a sought-after Solar piece from Seiko's golden era. Powered by the 6690 caliber with 34j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-9aca8a9a68c1]

Also known as: Sportsmatic, Emperor

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
45mm
Case Thickness
12.4mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
White
Jewels
34j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1981

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