Seiko Cal. 4447 - 472

The Seiko 4447-472 represents an important milestone in Seiko's 1977 lineup. It features a Navy dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-aa9c621f5f97]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1977

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