Seiko Cal. 4430 - 660

The Seiko 4430-660 represents an important milestone in Seiko's 1989 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-3435c378b0ed]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1989

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