Seiko Cal. 4427 - 351

Released in 1977, the Cal. 4427 with design code 351 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-f555a38add0d]

Also known as: Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1977

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