Seiko Cal. 4440 - 520

The Seiko 4440-520 represents an important milestone in Seiko's 1978 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-8d32149272d9]

Also known as: Arnie

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1978

Related Models

• Seiko 6136-595
• Seiko 4542-728
• Seiko 5620-863
• Seiko 4423-857
• Seiko 0710-232
• Seiko 4486-780
• Seiko 5228-336
• Seiko 6657-684
• Seiko 3839-134
• Seiko 4444-459
• Seiko 4521-297
• Seiko 3839-136