Seiko Cal. 6661 - 423

Seiko 6661-423

The 6661-423 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6661 caliber with 28j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-ed19d1da8362]

Also known as: Monster, Shogun

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
45mm
Case Thickness
9.2mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Navy
Jewels
28j
Frequency
21,600 bph
Power Reserve
51 hours
Year
1983

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seikata-wm-ed19d1da8362