Seiko Cal. 5658 - 762

This Hand-Winding model from 1970 features a 35mm Hardlex-Coated Steel case. Powered by the 5658 caliber with 21j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-7e272b4a36a5]

Also known as: Bellmatic, World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1970

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