Seiko Cal. 6650 - 186

The Seiko 6650-186 represents an important milestone in Seiko's 1972 lineup. Powered by the 6650 caliber with 21j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-2bf50cd48014]

Also known as: Monster, Arnie

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1972

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