Seiko Cal. 4447 - 740

The 4447-740 is a sought-after Quartz piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-fcfe02910ce4]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

38mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1991

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