Seiko Cal. 4427 - 531

Released in 1997, the Cal. 4427 with design code 531 was part of Seiko's domestic market collection. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-29ec07fcf427]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1997

Related Models

• Seiko 3843-366
• Seiko 7164-979
• Seiko 6275-619
• Seiko 4453-644
• Seiko 4546-609
• Seiko 6359-559
• Seiko 7026-101
• Seiko 4460-773
• Seiko 5632-921
• Seiko 7067-468
• Seiko 3855-601
• Seiko 3837-500