Seiko Cal. 4441 - 666

This Spring Drive model from 1970 features a 41mm Titanium case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-520efef8726d]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1970

Related Models

• Seiko 6158-918
• Seiko 6162-834
• Seiko 5284-654
• Seiko 6264-773
• Seiko 6625-595
• Seiko 7030-554
• Seiko 6628-650
• Seiko 4485-500
• Seiko 6376-877
• Seiko 6257-808
• Seiko 6398-406
• Seiko 4523-442