Seiko Cal. 6641 - 180

The 6641-180 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6641 caliber with 30j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-77a6ae6b6ced]

Also known as: Sumo, Rally

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1998

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