Seiko Cal. 4437 - 121

The Seiko 4437-121 represents an important milestone in Seiko's 1989 lineup. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-b97977c300c9]

Also known as: UFO, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1989

Related Models

• Seiko 7021-770
• Seiko 6681-126
• Seiko 7126-187
• Seiko 4553-998
• Seiko 7166-625
• Seiko 6617-102
• Seiko 7028-242
• Seiko 0758-794
• Seiko 6190-484
• Seiko 3838-242
• Seiko 3814-810
• Seiko 4589-370