Seiko Cal. 4427 - 347

The 4427-347 is a sought-after Solar piece from Seiko's golden era. It features a Champagne dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-5c517d42f360]

Also known as: Helmet, Rally

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Champagne

Jewels

19j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1977

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