Seiko Cal. 4437 - 398

The 4437-398 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-33fdeeae8ee7]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1983

Related Models

• Seiko 5220-366
• Seiko 4439-666
• Seiko 3877-390
• Seiko 5693-547
• Seiko 6696-930
• Seiko 6244-330
• Seiko 5289-838
• Seiko 7120-683
• Seiko 6264-488
• Seiko 5248-710
• Seiko 7131-481
• Seiko 6692-862