Seiko Cal. 6665 - 550

The 6665-550 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6665 caliber with 32j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-3d4cf39d8353]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1994

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