Seiko Cal. 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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