Seiko Cal. 6646 - 661

The 6646-661 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6646 caliber with 25j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-6309d5268cc1]

Also known as: Bellmatic, Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1993

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