Seiko Cal. 4439 - 365

The Seiko 4439-365 represents an important milestone in Seiko's 1983 lineup. With its 18mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-748c484d2a1f]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1983

Related Models

• Seiko 5273-285
• Seiko 6160-918
• Seiko 5236-899
• Seiko 0734-619
• Seiko 6639-887
• Seiko 6147-285
• Seiko 6147-139
• Seiko 0787-897
• Seiko 5283-783
• Seiko 5618-953
• Seiko 3872-695
• Seiko 6380-604