Seiko Cal. 6641 - 328

Seiko 6641-328

The 6641-328 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6641 caliber with 31j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-ad7629c1bd72]

Also known as: Rally, Goldfeather

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
35mm
Case Thickness
8.0mm
Lug Width
20mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
180m
Dial Color
Navy
Jewels
31j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1986

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