Seiko Cal. 4431 - 753

The Seiko 4431-753 represents an important milestone in Seiko's 1978 lineup. Powered by the 4431 caliber with 34j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-2e1646fbac35]

Also known as: Turtle

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1978

Related Models

• Seiko 5274-574
• Seiko 4512-836
• Seiko 7180-428
• Seiko 6362-938
• Seiko 7012-728
• Seiko 5280-960
• Seiko 4431-696
• Seiko 4434-470
• Seiko 6322-980
• Seiko 6295-819
• Seiko 0798-873
• Seiko 5695-710