Seiko Cal. 6690 - 648

Seiko 6690-648

The 6690-648 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6690 caliber with 23j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-dcfdb0264e68]

Also known as: Bullhead, Goldfeather

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
37mm
Case Thickness
13.4mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
40m
Dial Color
Burgundy
Jewels
23j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1983

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