Seiko Cal. 4441 - 728

The Seiko 4441-728 represents an important milestone in Seiko's 1968 lineup. It features a Champagne dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-7be598aecec8]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1968

Related Models

• Seiko 6279-558
• Seiko 7163-402
• Seiko 6639-421
• Seiko 0734-829
• Seiko 6272-686
• Seiko 6229-880
• Seiko 0787-237
• Seiko 6393-301
• Seiko 6285-870
• Seiko 6242-372
• Seiko 6299-718
• Seiko 7098-907