Seiko Cal. 4425 - 985

This Spring Drive model from 1975 features a 40mm Gold-Plated case. Powered by the 4425 caliber with 17j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-466a0d5e9767]

Also known as: UFO, Arnie

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1975

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