Seiko Cal. 6690 - 318

Seiko 6690-318

The 6690-318 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6690 caliber with 24j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-77f28004f1b9]

Also known as: Turtle, Emperor

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
9.0mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
90m
Dial Color
Silver
Jewels
24j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1983

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seikata-wm-77f28004f1b9