Seiko Cal. 6650 - 720

The Seiko 6650-720 represents an important milestone in Seiko's 1997 lineup. Powered by the 6650 caliber with 31j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-82fac341d5b4]

Also known as: Monster, Crown

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1997

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