Seiko Cal. 4430 - 748

The 4430-748 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4430 caliber with 21j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-6251ba2f3caa]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1982

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