Seiko Cal. 6620 - 740

The Seiko 6620-740 represents an important milestone in Seiko's 1994 lineup. Powered by the 6620 caliber with 22j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-6c1d971ee08b]

Also known as: UFO, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Champagne

Jewels

22j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1994

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