Seiko Cal. 4427 - 452

Released in 1974, the Cal. 4427 with design code 452 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-bdcf4485d075]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

31j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1974

Related Models

• Seiko 6661-764
• Seiko 3839-417
• Seiko 5659-108
• Seiko 3894-593
• Seiko 6620-131
• Seiko 3816-604
• Seiko 6650-270
• Seiko 4577-499
• Seiko 5265-690
• Seiko 7190-155
• Seiko 7069-977
• Seiko 6393-722