Seiko Cal. 4439 - 142

This Hand-Winding model from 1989 features a 40mm Hardlex-Coated Steel case. With its 19mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-bfd47cc0f195]

Also known as: Monster, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1989

Related Models

• Seiko 7038-184
• Seiko 6318-944
• Seiko 7091-928
• Seiko 6252-305
• Seiko 4425-333
• Seiko 4580-387
• Seiko 6234-858
• Seiko 7182-621
• Seiko 6625-337
• Seiko 7096-667
• Seiko 5263-181
• Seiko 6233-579