Seiko Cal. 7143 - 540

The Seiko 7143-540 represents an important milestone in Seiko's 1975 lineup. Powered by the 7143 caliber with 20j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-d801527d11ca]

Also known as: World Timer

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1975

Related Models

• Seiko 4431-498
• Seiko 6683-321
• Seiko 7078-679
• Seiko 0718-263
• Seiko 3869-912
• Seiko 5627-485
• Seiko 4586-497
• Seiko 4487-511
• Seiko 7113-383
• Seiko 6286-353
• Seiko 4547-879
• Seiko 6249-530