Seiko Cal. 5643 - 665

This Automatic model from 1985 features a 40mm Stainless Steel case. Powered by the 5643 caliber with 32j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-6fdc33666023]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1985

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