Seiko Cal. 7143 - 977

The 7143-977 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7143 caliber with 18j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-ed64ec827b52]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

18j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1972

Related Models

• Seiko 5221-340
• Seiko 4528-925
• Seiko 4462-278
• Seiko 6386-264
• Seiko 5668-777
• Seiko 3842-583
• Seiko 0764-996
• Seiko 3877-582
• Seiko 3829-309
• Seiko 0781-332
• Seiko 4432-737
• Seiko 5288-572