Seiko Cal. 6690 - 587

Seiko 6690-587

The 6690-587 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6690 caliber with 18j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-eac1d9e8bb9b]

Also known as: Turtle, Emperor

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
46mm
Case Thickness
15.5mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
170m
Dial Color
Black
Jewels
18j
Frequency
36,000 bph
Power Reserve
67 hours
Year
1983

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