Seiko Cal. 6654 - 683

The Seiko 6654-683 represents an important milestone in Seiko's 1965 lineup. Powered by the 6654 caliber with 32j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-e0bd48c3f9d1]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1965

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