Seiko Cal. 6658 - 747

The Seiko 6658-747 represents an important milestone in Seiko's 1988 lineup. Powered by the 6658 caliber with 19j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-4ee9054af2f1]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1988

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