Seiko Cal. 4441 - 521

The Seiko 4441-521 represents an important milestone in Seiko's 1969 lineup. With its 18mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-bc4d1cb533f1]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1969

Related Models

• Seiko 6159-980
• Seiko 4423-477
• Seiko 4543-543
• Seiko 3849-275
• Seiko 6629-905
• Seiko 6254-974
• Seiko 6267-779
• Seiko 5217-740
• Seiko 4590-956
• Seiko 6244-217
• Seiko 4549-795
• Seiko 6184-710