Seiko Cal. 4421 - 530

This Hand-Winding model from 1966 features a 40mm Titanium case. Powered by the 4421 caliber with 35j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-f734667865c3]

Also known as: UFO, World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1966

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