Seiko Cal. 6630 - 905

This Hand-Winding model from 1972 features a 46mm Hardlex-Coated Steel case. Powered by the 6630 caliber with 18j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-246bc252cae4]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1972

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