Seiko Cal. 4447 - 328

Released in 1987, the Cal. 4447 with design code 328 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-af3ba7fc0933]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1987

Related Models

• Seiko 3837-690
• Seiko 3899-624
• Seiko 3857-478
• Seiko 6242-101
• Seiko 6619-756
• Seiko 4420-337
• Seiko 6221-543
• Seiko 6268-616
• Seiko 4428-857
• Seiko 6181-173
• Seiko 6682-888
• Seiko 7187-248